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【简答题】
氧化还原反应是一类重要的反应。回答下列问题: (1)氧化还原反应在工农业生产、日常生活中都有 广泛的用途。如人和动物通过呼吸作用提供能量,以维持生命活动。已知人和动物呼吸作用的反应为:C 6 H 12 O 6 +6O 2 +6H 2 O→6CO 2 +12H 2 O。在该反应中,作为还原剂的物质是____。 (2)有些氧化还原反应却是有危害的,例如,钢铁的腐蚀、食物的腐败等。因此,要想方设法阻止此类氧化还原反应的发生。 ①罐头厂在装食品罐头时,添加一些防腐剂,防止食物被空气中的氧气氧化而变质。从氧化还原反应角度看,防腐剂具有___性。 ②在氧化还原反应中,氧化和还原、氧化剂和还原剂总是同时存在的。根据这一知识,谈谈如何有效避免有危害的氧化还原反应的发生(可通过实例说明):____。
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举一反三
【判断题】经济管理方法是指饭店运用各种经济手段对劳动者进行引导和约束的管理方法。()
A.
正确
B.
错误
【单选题】Probably adv.
A.
突然地
B.
一定地
C.
可能地
【单选题】It is difficult to imagine what life would be like without memory. The meanings of thousands of everyday perceptions, the bases【51】the decisions we make, and the roots of our habits and skills are to ...
A.
of
B.
to
C.
for
D.
on
【简答题】电磁机构由 、铁心、衔铁和空气隙几部分组成。
【单选题】下列会计凭证属于累计凭证的是( )
A.
银行结算凭证
B.
收据
C.
限额领料单
D.
差旅费报销单
【判断题】按照 “三个代表”的要求,只要是在代表先进生产力部门工作的人都可以加入中国共产党
A.
正确
B.
错误
【简答题】幼儿期一般是指3岁以后到()岁间这个阶段。
【单选题】【R3】
B.
YOU CAN SCHEDULE AN AUTOMATIC PAYMENT. B. TRYING TO GET OUT OF THE LATE FEE SOMETIMES.
E.
YOU'D BETTER PLAN TO PAY AHEA D. D. CHANGE YOUR PAYMENT DUE DATE IN ORDER TO AVOID LATE FE E. E. YOU COULD ALSO SET FOR YOURSELF A REMINDER TO PAY IN TIM E. IF YOU'RE EVEN A MINUTE LATE WITH A PAYMENT, YOUR CREDIT CARD COMPANY CAN HIT YOU HARD IN THE WALLET—AS MUCH AS $39 EACH TIME, ACCORDING TO A JULY 2008 SURVEY. HOWEVER, SOME SIMPLE STEPS CAN HELP KEEP YOUR EXPOSURE TO THESE EXTRA COSTS TO A MINIMU M. 【R1】______ A FEW CARD ISSUERS, INCLUDING CHASE AND HSBC, CHARGE EXTRA FEES FOR ONLINE PAYMENTS THAT YOU NEED TO POST THE SAME DAY, SO EVEN IF YOU PAY ELECTRONICALLY, DO IT THREE TO FOUR DAYS AHEAD SO YOUR CREDIT CARD COMPANY WILL PROCESS THE PAYMENT BY THE DUE DAT E. IF YOU'RE SNAIL-MAILING CHECKS, ALLOW EVEN MORE TIME—ABOUT 10 DAYS—TO ALLOW FOR MAIL SNAFUS. AND UNLESS YOU'RE DESPERATE, FORGET ABOUT PHONE PAYMENTS—A NUMBER OF BANKS CHARGE A FEE FOR THEM, NO MATTER WHEN YOU CALL. 【R2】______ A FEW CARD ISSUERS ALLOW YOU TO CHOOSE A DUE DATE TO COINCIDE WITH YOUR PAYDAY SCHEDULE, SO A CASH SHORTFALL WON'T MAKE YOU LAT E. YOU CAN EVEN CHOOSE A DUE DATE THAT'S EASIER TO REMEMBER. YOUR BIRTHDAY'S ON FE B. 17? MAKE YOUR CREDIT CARD PAYMENT DUE ON THE 17TH OF EACH MONT H. 【R3】______ SOME BANKS OFFER AN AUTOPAY PROGRAM THAT LINKS YOUR CREDIT CARD TO A CHECKING OR SAVING ACCOUNT; YOU DECIDE WHETHER TO AUTOMATICALLY PAY THE NEW BALANCE, THE CURRENT MINIMUM PAYMENT OR A FIXED DOLLAR AMOUNT. IF YOU BANK ONLINE, YOU CAN ALSO ARRANGE A DO-IT-YOURSELF AUTOPAY. JUST ESTIMATE YOUR USUAL MONTHLY MINIMUM, SCHEDULE A MONTHLY PAYMENT DATE AND HAVE THE AMOUNT DEDUCTED FROM YOUR ACCOUNT AUTOMATICALLY. JUST MAKE SURE YOU HAVE ENOUGH IN CHECKING TO COVER IT OR THE OVERDRAFT FEES WILL EAT UP YOUR SAVING ON LATE FEES. 【R4】______ SOME CREDIT CARD COMPANIES, INCLUDING CHASE, WILL ALERT YOU OF UPCOMING DUE DATES BY E-MAIL OR VOICE MAIL. YOU CAN ALSO SCHEDULE A MONTHLY E-MAIL REMINDER THROUGH A WEB SITE, SUCH AS MEMOTOM E. COM OR REMEMBERTHMIL K. COM, 【R5】______ EVEN CONSCIENTIOUS CONSUMERS WILL PROBABLY GET HIT WITH A LATE FEE AT SOME POINT. HOWEVER, IF YOU HAVE A GOOD RECORD OF ON-TIME PAYMENTS, CALL AND POLITELY ASK A CUSTOMER SERVICE REPRESENTATIVE TO WAIVE THE CHARG E. NO DICE? ASK TO TALK TO A SUPERVISOR, OR TRY AGAIN ON A DIFFERENT DAY. YOU MIGHT EVEN THREATEN TO CLOSE YOUR ACCOUNTS WITH THE COMPANY—A TACTIC THAT WORKED FOR JEFF ROTH OF MOLALLA, ORE, AFTER HIS WIFE'S CHASE CREDIT CARD WAS HIT WITH A $ 39 LATE FEE WHEN THE FOURTH OF JULY DELAYED PROCESSING OF A PAYMENT. 'MY ADVICE TO THOSE WHO FEEL THEY HAVE UNJUSTLY BEEN ASSESSED LATE FEES IS TO BE ASSERTIVE ABOUT GETTING THE CHARGES REMOVE D. ' SAYS ROTH, WHO POSTED ABOUT HIS PLIGHT AT GETRICHSLOWLY.OR G. 'IT WON'T ALWAYS WORK, BUT MOST CREDIT CARD COMPANIES WILL LEAST GIVE YOU ONE FREEBI E. ' NEXT TIME, THOUGH, YOU MAY BE ON YOUR OW N.
【单选题】【R4】
B.
YOU CAN SCHEDULE AN AUTOMATIC PAYMENT. B. TRYING TO GET OUT OF THE LATE FEE SOMETIMES.
E.
YOU'D BETTER PLAN TO PAY AHEA D. D. CHANGE YOUR PAYMENT DUE DATE IN ORDER TO AVOID LATE FE E. E. YOU COULD ALSO SET FOR YOURSELF A REMINDER TO PAY IN TIM E. IF YOU'RE EVEN A MINUTE LATE WITH A PAYMENT, YOUR CREDIT CARD COMPANY CAN HIT YOU HARD IN THE WALLET—AS MUCH AS $39 EACH TIME, ACCORDING TO A JULY 2008 SURVEY. HOWEVER, SOME SIMPLE STEPS CAN HELP KEEP YOUR EXPOSURE TO THESE EXTRA COSTS TO A MINIMU M. 【R1】______ A FEW CARD ISSUERS, INCLUDING CHASE AND HSBC, CHARGE EXTRA FEES FOR ONLINE PAYMENTS THAT YOU NEED TO POST THE SAME DAY, SO EVEN IF YOU PAY ELECTRONICALLY, DO IT THREE TO FOUR DAYS AHEAD SO YOUR CREDIT CARD COMPANY WILL PROCESS THE PAYMENT BY THE DUE DAT E. IF YOU'RE SNAIL-MAILING CHECKS, ALLOW EVEN MORE TIME—ABOUT 10 DAYS—TO ALLOW FOR MAIL SNAFUS. AND UNLESS YOU'RE DESPERATE, FORGET ABOUT PHONE PAYMENTS—A NUMBER OF BANKS CHARGE A FEE FOR THEM, NO MATTER WHEN YOU CALL. 【R2】______ A FEW CARD ISSUERS ALLOW YOU TO CHOOSE A DUE DATE TO COINCIDE WITH YOUR PAYDAY SCHEDULE, SO A CASH SHORTFALL WON'T MAKE YOU LAT E. YOU CAN EVEN CHOOSE A DUE DATE THAT'S EASIER TO REMEMBER. YOUR BIRTHDAY'S ON FE B. 17? MAKE YOUR CREDIT CARD PAYMENT DUE ON THE 17TH OF EACH MONT H. 【R3】______ SOME BANKS OFFER AN AUTOPAY PROGRAM THAT LINKS YOUR CREDIT CARD TO A CHECKING OR SAVING ACCOUNT; YOU DECIDE WHETHER TO AUTOMATICALLY PAY THE NEW BALANCE, THE CURRENT MINIMUM PAYMENT OR A FIXED DOLLAR AMOUNT. IF YOU BANK ONLINE, YOU CAN ALSO ARRANGE A DO-IT-YOURSELF AUTOPAY. JUST ESTIMATE YOUR USUAL MONTHLY MINIMUM, SCHEDULE A MONTHLY PAYMENT DATE AND HAVE THE AMOUNT DEDUCTED FROM YOUR ACCOUNT AUTOMATICALLY. JUST MAKE SURE YOU HAVE ENOUGH IN CHECKING TO COVER IT OR THE OVERDRAFT FEES WILL EAT UP YOUR SAVING ON LATE FEES. 【R4】______ SOME CREDIT CARD COMPANIES, INCLUDING CHASE, WILL ALERT YOU OF UPCOMING DUE DATES BY E-MAIL OR VOICE MAIL. YOU CAN ALSO SCHEDULE A MONTHLY E-MAIL REMINDER THROUGH A WEB SITE, SUCH AS MEMOTOM E. COM OR REMEMBERTHMIL K. COM, 【R5】______ EVEN CONSCIENTIOUS CONSUMERS WILL PROBABLY GET HIT WITH A LATE FEE AT SOME POINT. HOWEVER, IF YOU HAVE A GOOD RECORD OF ON-TIME PAYMENTS, CALL AND POLITELY ASK A CUSTOMER SERVICE REPRESENTATIVE TO WAIVE THE CHARG E. NO DICE? ASK TO TALK TO A SUPERVISOR, OR TRY AGAIN ON A DIFFERENT DAY. YOU MIGHT EVEN THREATEN TO CLOSE YOUR ACCOUNTS WITH THE COMPANY—A TACTIC THAT WORKED FOR JEFF ROTH OF MOLALLA, ORE, AFTER HIS WIFE'S CHASE CREDIT CARD WAS HIT WITH A $ 39 LATE FEE WHEN THE FOURTH OF JULY DELAYED PROCESSING OF A PAYMENT. 'MY ADVICE TO THOSE WHO FEEL THEY HAVE UNJUSTLY BEEN ASSESSED LATE FEES IS TO BE ASSERTIVE ABOUT GETTING THE CHARGES REMOVE D. ' SAYS ROTH, WHO POSTED ABOUT HIS PLIGHT AT GETRICHSLOWLY.OR G. 'IT WON'T ALWAYS WORK, BUT MOST CREDIT CARD COMPANIES WILL LEAST GIVE YOU ONE FREEBI E. ' NEXT TIME, THOUGH, YOU MAY BE ON YOUR OW N.
【单选题】suddenly adv.
A.
惊吓的
B.
突然地
C.
飞快地
相关题目:
【单选题】【R3】
B.
YOU CAN SCHEDULE AN AUTOMATIC PAYMENT. B. TRYING TO GET OUT OF THE LATE FEE SOMETIMES.
E.
YOU'D BETTER PLAN TO PAY AHEA D. D. CHANGE YOUR PAYMENT DUE DATE IN ORDER TO AVOID LATE FE E. E. YOU COULD ALSO SET FOR YOURSELF A REMINDER TO PAY IN TIM E. IF YOU'RE EVEN A MINUTE LATE WITH A PAYMENT, YOUR CREDIT CARD COMPANY CAN HIT YOU HARD IN THE WALLET—AS MUCH AS $39 EACH TIME, ACCORDING TO A JULY 2008 SURVEY. HOWEVER, SOME SIMPLE STEPS CAN HELP KEEP YOUR EXPOSURE TO THESE EXTRA COSTS TO A MINIMU M. 【R1】______ A FEW CARD ISSUERS, INCLUDING CHASE AND HSBC, CHARGE EXTRA FEES FOR ONLINE PAYMENTS THAT YOU NEED TO POST THE SAME DAY, SO EVEN IF YOU PAY ELECTRONICALLY, DO IT THREE TO FOUR DAYS AHEAD SO YOUR CREDIT CARD COMPANY WILL PROCESS THE PAYMENT BY THE DUE DAT E. IF YOU'RE SNAIL-MAILING CHECKS, ALLOW EVEN MORE TIME—ABOUT 10 DAYS—TO ALLOW FOR MAIL SNAFUS. AND UNLESS YOU'RE DESPERATE, FORGET ABOUT PHONE PAYMENTS—A NUMBER OF BANKS CHARGE A FEE FOR THEM, NO MATTER WHEN YOU CALL. 【R2】______ A FEW CARD ISSUERS ALLOW YOU TO CHOOSE A DUE DATE TO COINCIDE WITH YOUR PAYDAY SCHEDULE, SO A CASH SHORTFALL WON'T MAKE YOU LAT E. YOU CAN EVEN CHOOSE A DUE DATE THAT'S EASIER TO REMEMBER. YOUR BIRTHDAY'S ON FE B. 17? MAKE YOUR CREDIT CARD PAYMENT DUE ON THE 17TH OF EACH MONT H. 【R3】______ SOME BANKS OFFER AN AUTOPAY PROGRAM THAT LINKS YOUR CREDIT CARD TO A CHECKING OR SAVING ACCOUNT; YOU DECIDE WHETHER TO AUTOMATICALLY PAY THE NEW BALANCE, THE CURRENT MINIMUM PAYMENT OR A FIXED DOLLAR AMOUNT. IF YOU BANK ONLINE, YOU CAN ALSO ARRANGE A DO-IT-YOURSELF AUTOPAY. JUST ESTIMATE YOUR USUAL MONTHLY MINIMUM, SCHEDULE A MONTHLY PAYMENT DATE AND HAVE THE AMOUNT DEDUCTED FROM YOUR ACCOUNT AUTOMATICALLY. JUST MAKE SURE YOU HAVE ENOUGH IN CHECKING TO COVER IT OR THE OVERDRAFT FEES WILL EAT UP YOUR SAVING ON LATE FEES. 【R4】______ SOME CREDIT CARD COMPANIES, INCLUDING CHASE, WILL ALERT YOU OF UPCOMING DUE DATES BY E-MAIL OR VOICE MAIL. YOU CAN ALSO SCHEDULE A MONTHLY E-MAIL REMINDER THROUGH A WEB SITE, SUCH AS MEMOTOM E. COM OR REMEMBERTHMIL K. COM, 【R5】______ EVEN CONSCIENTIOUS CONSUMERS WILL PROBABLY GET HIT WITH A LATE FEE AT SOME POINT. HOWEVER, IF YOU HAVE A GOOD RECORD OF ON-TIME PAYMENTS, CALL AND POLITELY ASK A CUSTOMER SERVICE REPRESENTATIVE TO WAIVE THE CHARG E. NO DICE? ASK TO TALK TO A SUPERVISOR, OR TRY AGAIN ON A DIFFERENT DAY. YOU MIGHT EVEN THREATEN TO CLOSE YOUR ACCOUNTS WITH THE COMPANY—A TACTIC THAT WORKED FOR JEFF ROTH OF MOLALLA, ORE, AFTER HIS WIFE'S CHASE CREDIT CARD WAS HIT WITH A $ 39 LATE FEE WHEN THE FOURTH OF JULY DELAYED PROCESSING OF A PAYMENT. 'MY ADVICE TO THOSE WHO FEEL THEY HAVE UNJUSTLY BEEN ASSESSED LATE FEES IS TO BE ASSERTIVE ABOUT GETTING THE CHARGES REMOVE D. ' SAYS ROTH, WHO POSTED ABOUT HIS PLIGHT AT GETRICHSLOWLY.OR G. 'IT WON'T ALWAYS WORK, BUT MOST CREDIT CARD COMPANIES WILL LEAST GIVE YOU ONE FREEBI E. ' NEXT TIME, THOUGH, YOU MAY BE ON YOUR OW N.
【单选题】【R4】
B.
YOU CAN SCHEDULE AN AUTOMATIC PAYMENT. B. TRYING TO GET OUT OF THE LATE FEE SOMETIMES.
E.
YOU'D BETTER PLAN TO PAY AHEA D. D. CHANGE YOUR PAYMENT DUE DATE IN ORDER TO AVOID LATE FE E. E. YOU COULD ALSO SET FOR YOURSELF A REMINDER TO PAY IN TIM E. IF YOU'RE EVEN A MINUTE LATE WITH A PAYMENT, YOUR CREDIT CARD COMPANY CAN HIT YOU HARD IN THE WALLET—AS MUCH AS $39 EACH TIME, ACCORDING TO A JULY 2008 SURVEY. HOWEVER, SOME SIMPLE STEPS CAN HELP KEEP YOUR EXPOSURE TO THESE EXTRA COSTS TO A MINIMU M. 【R1】______ A FEW CARD ISSUERS, INCLUDING CHASE AND HSBC, CHARGE EXTRA FEES FOR ONLINE PAYMENTS THAT YOU NEED TO POST THE SAME DAY, SO EVEN IF YOU PAY ELECTRONICALLY, DO IT THREE TO FOUR DAYS AHEAD SO YOUR CREDIT CARD COMPANY WILL PROCESS THE PAYMENT BY THE DUE DAT E. IF YOU'RE SNAIL-MAILING CHECKS, ALLOW EVEN MORE TIME—ABOUT 10 DAYS—TO ALLOW FOR MAIL SNAFUS. AND UNLESS YOU'RE DESPERATE, FORGET ABOUT PHONE PAYMENTS—A NUMBER OF BANKS CHARGE A FEE FOR THEM, NO MATTER WHEN YOU CALL. 【R2】______ A FEW CARD ISSUERS ALLOW YOU TO CHOOSE A DUE DATE TO COINCIDE WITH YOUR PAYDAY SCHEDULE, SO A CASH SHORTFALL WON'T MAKE YOU LAT E. YOU CAN EVEN CHOOSE A DUE DATE THAT'S EASIER TO REMEMBER. YOUR BIRTHDAY'S ON FE B. 17? MAKE YOUR CREDIT CARD PAYMENT DUE ON THE 17TH OF EACH MONT H. 【R3】______ SOME BANKS OFFER AN AUTOPAY PROGRAM THAT LINKS YOUR CREDIT CARD TO A CHECKING OR SAVING ACCOUNT; YOU DECIDE WHETHER TO AUTOMATICALLY PAY THE NEW BALANCE, THE CURRENT MINIMUM PAYMENT OR A FIXED DOLLAR AMOUNT. IF YOU BANK ONLINE, YOU CAN ALSO ARRANGE A DO-IT-YOURSELF AUTOPAY. JUST ESTIMATE YOUR USUAL MONTHLY MINIMUM, SCHEDULE A MONTHLY PAYMENT DATE AND HAVE THE AMOUNT DEDUCTED FROM YOUR ACCOUNT AUTOMATICALLY. JUST MAKE SURE YOU HAVE ENOUGH IN CHECKING TO COVER IT OR THE OVERDRAFT FEES WILL EAT UP YOUR SAVING ON LATE FEES. 【R4】______ SOME CREDIT CARD COMPANIES, INCLUDING CHASE, WILL ALERT YOU OF UPCOMING DUE DATES BY E-MAIL OR VOICE MAIL. YOU CAN ALSO SCHEDULE A MONTHLY E-MAIL REMINDER THROUGH A WEB SITE, SUCH AS MEMOTOM E. COM OR REMEMBERTHMIL K. COM, 【R5】______ EVEN CONSCIENTIOUS CONSUMERS WILL PROBABLY GET HIT WITH A LATE FEE AT SOME POINT. HOWEVER, IF YOU HAVE A GOOD RECORD OF ON-TIME PAYMENTS, CALL AND POLITELY ASK A CUSTOMER SERVICE REPRESENTATIVE TO WAIVE THE CHARG E. NO DICE? ASK TO TALK TO A SUPERVISOR, OR TRY AGAIN ON A DIFFERENT DAY. YOU MIGHT EVEN THREATEN TO CLOSE YOUR ACCOUNTS WITH THE COMPANY—A TACTIC THAT WORKED FOR JEFF ROTH OF MOLALLA, ORE, AFTER HIS WIFE'S CHASE CREDIT CARD WAS HIT WITH A $ 39 LATE FEE WHEN THE FOURTH OF JULY DELAYED PROCESSING OF A PAYMENT. 'MY ADVICE TO THOSE WHO FEEL THEY HAVE UNJUSTLY BEEN ASSESSED LATE FEES IS TO BE ASSERTIVE ABOUT GETTING THE CHARGES REMOVE D. ' SAYS ROTH, WHO POSTED ABOUT HIS PLIGHT AT GETRICHSLOWLY.OR G. 'IT WON'T ALWAYS WORK, BUT MOST CREDIT CARD COMPANIES WILL LEAST GIVE YOU ONE FREEBI E. ' NEXT TIME, THOUGH, YOU MAY BE ON YOUR OW N.