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【单选题】
外部性发生在当人们
A.
无偿享有了额外受益或承担了不是由他导致的额外成本时
B.
负担一个超出交易中购买价格的额外费用时
C.
由于供给的减少而减少他们对一种商品的需求时
D.
借款给一个公司而那个公司宣布破产时
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举一反三
【判断题】发电机并列操作时,要求:1.并列瞬间,冲击电流不应超过规定的允许值。2.并列后,发电机迅速拖入同步运行。
A.
正确
B.
错误
【单选题】In the case of seat belts, instead of a simple, straightforward reduction in the deaths, the end result is actually a more complicated redistribution of risk and fatalities.
A.
Seat belts reduce the death rate no matter how complicated the distribution of risk and fatalities is.
B.
Seat belts may seem to reduce the death rate, but actually the risks still exist but in a different way.
【单选题】In the case of seat belts, instead of a simple, straightforward reduction in deaths, the end result is actually a more complicated redistribution of risk and fatalities.
A.
Seat belts reduce the death rate no matter how complicated the distribution of risk and fatalities is.
B.
Seat belts may seem to reduce the death rate, but actually the risks will exist but in a different way.
【判断题】发电机并列操作要求并列瞬间发电机的冲击电流不应超过规定的允许值,并列后,发电机应能迅速进入同步运行。
A.
正确
B.
错误
【判断题】发电机并列操作时,要求:①并列瞬间,冲击电流不应超过规定的允许值;②并列后,发电机迅速拖入同步运行。()
A.
正确
B.
错误
【单选题】You'd better keep a seat for her in case she____
A.
coming
B.
should come
C.
is coming
D.
may come
【简答题】发电机并列操作时,要求在并列瞬间的冲击电流不能超过允许值,并列后发电机应能迅速转入()。
【单选题】Donna dare not settle herself too comfortably into her seat in case she _________.
A.
slept through
B.
dozed down
C.
slept away
D.
dozed off
【单选题】运行中的变压器铁芯允许()
A.
一点接地
B.
两点接地
C.
多点接地
D.
不接地
【判断题】运行中的变压器铁芯允许一点接地。()
A.
正确
B.
错误
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