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【单选题】
不 禁 (jìn jīn)A.
jìn
B.
jīn
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皮皮学刷刷变学霸
举一反三
【多选题】关于使用模拟式万用表进行直流电流测试的方法,下列叙述正确的是( )。
A.
将万用表的选择开关置于“直流电流档”,根据被测电流预估值选择合适的量程
B.
若不能预估电流值范围,应先将量程选择开关置于最小档测量后再调整量程
C.
万用表并联,红表笔接正端,黑表笔接负端
D.
测试操作之前先断开电源,待表笔接好后,再通电源,测量完后,电路要还原
【多选题】关于使用模拟式万用表进行直流电压测试的方法,下列叙述正确的是( )。
A.
将万用表的选择开关置于“交流电压档”,根据被测电流预估值选择合适的量程
B.
若不能预估电压值范围,应先将量程选择开关置于最小档测量后再调整量程
C.
万用表串联,红表笔接正端,黑表笔接负端
D.
交流电压测量时,可以不用考虑表笔的极性
【简答题】小题1:0ur city is beautiful.(改为感叹句) ______ our city is! 小题2:There are two hundred famous companies in Xinjiang from 19 provinces.(对划线部分提问) ______ _______famous companies in Xinjiang are there from 19 pr...
【单选题】The new colleague____to have worked in several big corporations before he joined our company.
A.
confesses
B.
declares
C.
claims
D.
confirms
【单选题】听力原文： Our next speaker has been president and chief executive of British software company Digitech for over 10 years. After earning an MBA from Appleton University, Lorraine Brennan began her career a...
A.
A professor
B.
An accountant
C.
CEO of a company
D.
A market researcher
【单选题】When ___our culture with those of other countries, we find ours is quite different.
A.
compared
B.
comparing
C.
to compare
D.
being comparing
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