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【多选题】
保护接地的主要作用是( )。A.
防止人身触电
B.
减少接地电流
C.
降低接地电压
D.
短路保护
E.
减少流经人身的电流
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【简答题】Noise can produce serious ______ stress.
【简答题】What do you think of stress? Is it a good thing or a bad thing? Most of the students think stress can do harm them in some ways. There’s a story about a ager in a middle school. He even his study ...
【简答题】余云衢太史形体充壮饮啖兼人辛卯季夏六月患热病肢体不甚热而间扬掷手足如躁扰状昏愦不知人事时发一二语不可了而非谵也脉微细如欲绝有谓是阴证宜温者有谓当下者取时座师陆葵日先生与曾植斋冯琢庵二太史皆取决于余余谓是阳病见阴脉在法为不治然素禀如此又值酷暑外烁酒炙内炎宜狂热如焚脉洪数有力而此何为者岂热气怫郁不得伸而然耶且不大便七日矣姑以大柴胡汤下之时大黄止用二钱又熟煎而太医王雷庵力争以为太少不若用大承气余曰如此脉...
【单选题】Failure to face up to painful experience can be ________ form of stress itself, and can increase ________ possibility of illness.
A.
the; /
B.
a; a
C.
a; the
D.
/; the
【单选题】Which of the following statements is TRUE?
A.
We can find some ways to avoid stress.
B.
Stress is always harmful to people.
C.
It is easy to change the habit of keeping oneself busy with work.
D.
Different people can withstand different amount of stress.
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