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【简答题】
Sharks frighten most of us, but Daniel Weaver, a shark scientist, swims with them for a living! We asked him some questions about this unusual job. So Daniel, what’s it like to be a shark scientist? Well, it’s a great job. I often travel to faraway places like South Africa and Fiji to study sharks. On the other hand, a shark scientist sometimes does boring desk work, such as writing reports. Also, shark scientists don’t usually get paid a lot. What qualities (品质) do you need to become a shark scientist? Shark scientists need to be wise and strong. They enjoy working outdoors and they have to be cool and patient (耐心). They also have to be quite brave! So do you think it’s a dangerous job? Well, sharks have up to 15 rows of sharp teeth. However, sharks hardly attack (攻击) humans. There are over 350 kinds of sharks in the world and only about 10 are dangerous to us. In fact, dogs kill more people every year than sharks! Humans kill over 12 million sharks a year for food and sport! How do you become a shark scientist? A shark scientist usually studies Marine Science or Zoology at university. It’s also good to get some work experience in an aquarium (水族馆). In my opinion, I have the best job in the world! 小题1:_______ questions were asked about Daniel’s unusual job. A.One B.Two C.Three D.Four 小题2:As a shark scientist, Daniel _______. A.studies sharks in his neighbourhood B.makes lots of money C.swims with sharks for a living D.only writes reports on sharks 小题3:In Daniel’s opinion, one needs to be _______ to become a shark scientist. ①excited   ②patient      ③brave    ④strong   ⑤wise A.①②③④ B.①③④⑤ C.②③④⑤ D.①②④⑤ 小题4:The underlined “ Marine Science ” and “ Zoology ” must be two _______ at university. A.subjects B.books C.scientists D.prizes 小题5:From the passage we can know that _______. A.sharks are likely to attack humans B.dogs are as dangerous as sharks to humans C.sharks are not dangerous to humans at all D.humans do more harm to sharks than sharks do to humans
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【单选题】车削工件端面时,切削速度是 ___________ 的。
A.
逐渐增大
B.
逐渐减小
C.
不变
【单选题】车削工件端面时,切削速度是( )。
A.
逐渐增大
B.
逐渐减小
C.
不变
【单选题】用户使用“自动窗体”功能创建窗体,如果选定的记录源有相关的表或查询,下列说法中正确的是( )。
A.
窗体还将包含来自这些记录源的所有字段和记录
B.
窗体将不包含来自这些记录源的所有字段和记录
C.
窗体还将包含来自这些记录源的所有字段,但不包含记录
D.
窗体还将包含来自这些记录源的所有记录,但不包含字段
【判断题】车削工件端面时,切削速度是不变的 。
A.
正确
B.
错误
【简答题】车削工件端面时,切削速度是()。
【单选题】刀具由工件外圆向中心处横向进给车端面时,切削速度是( ) 。
A.
不变
B.
由高到低
C.
由低到高
【单选题】9某企业按工资水平分为四组:1000元以下,1000~1500元;1500~2000元;2000元以上。第一组和第四组的组中值分别为( )。 D 750和2250
A.
750和2500
B.
800和2250
C.
800和2500
D.
750和2250
【单选题】if语句的基本形式: if ( 表达式 ) 语句 其中:“表达式”
A.
必须是逻辑表达式
B.
必须是关系表达式
C.
必须是逻辑表达式关系表达式
D.
可以是任意合法的表达式
【单选题】某企业按工资水平分为四组:1000元以下,1000~1500元;1500~2000元;2000元以上。第一组和第四组的组中值分别为( )
A.
750和2250
B.
500和2500
C.
800和2250
D.
800和2500
【单选题】某企业按工资水平分为四组:1000元以下,1000-1500元,1500-2000,2000元以上。则第一组和第四组的组中值为()
A.
750和2500
B.
800和2250
C.
800和2500
D.
750和2250
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