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【单选题】
(必答题)根据DIN VDE 0100-600标准,在设备调试前须检测保护接地线的接地导通(位置固定的操作工具),以下说法正确的是?
A.
当测量电流为1mA时,测量电压500 V DC 。
B.
若须记录检测结果,那么用通用的导通测试仪来检测地线就足够了。
C.
若以减去测量导线的电阻为前提,则保护电阻的测量值最高不超过10Ω可视为合格。
D.
当测量电流至少为200mA时,测量电压4-24V。
E.
测量保护电阻时接地桩和设备之间进行直接测量。
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【单选题】Which of the following is TRUE?
A.
Chinese people find it very easy to learn the names of English people.
B.
English people find it very easy to learn the names of American people.
C.
Jenny finds it very easy to learn the names of students from all over the world.
D.
Any name is very difficult to learn.
【简答题】What do these stressors have in common and what can we do to cope with them?
【单选题】We often hear him (      ) English under the tree in the morning.
A.
read
B.
reading
C.
to read
D.
reads
【单选题】Which of the following is INCORRECT according to the story?
A.
Both of the parents had an enjoyable day.
B.
Both parents and children had great experiences.
C.
Both parents and children learned something about how to spend money.
D.
Both the son and daughter had spent all their money.
【单选题】中国共产党第一次全国代表大会于()在上海举行。
A.
1921年7月1日
B.
1921年7月23日
C.
1921年7月31日
【多选题】What can we do to multi-task better in interpreting?
A.
To make each sub-task routine or automatic by practice
B.
To make the brain energy pool larger through great concentration
C.
To allocate brain energy more effectively
【单选题】中国共产党第一次全国代表大会于()在上海举行。
A.
1921年7月1日
B.
1921年7月23日
C.
1921年7月31日
D.
1927年8月1日
【多选题】What can we do to promote environmental protection in our daily life?
A.
Save all resources that we could save
B.
Take action to promote recycling
C.
Fight against all kinds of pollution
D.
Promote the idea to people around us
【单选题】— What can we do to help animals in nature reserves?— We can    .A.keep hunters away from reservesB.
A.
— What can we do to help animals in nature reserves? — We can ____. A.keep hunters away from reserves
B.
take their babies home
C.
cut down some trees in reserves
D.
encourage farmers to grow more rice in reserves
【单选题】Expenditure increased on all the following EXCEPT______.
A.
food
B.
automobiles
C.
education
D.
entertainment
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