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【单选题】
SF 6 断路器是新型的高压断路器形式，下列对其描述中不正确的是（）。A.
以与自由电子有非常好混合性的六氟化硫气体作为灭弧和绝缘介质
B.
开断能力强，分断电压可于做得较高
C.
六氟化硫气体常于氮气混合，但对含水量上限有严格要求
D.
该装置的维护保养工作量很大
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【单选题】58 Which of the following terms refers to the situation where the work is being used for the purpose intended and so certified:
A.
beneficial completion
B.
substantial completion
C.
project completion
D.
contract closeout
E.
final completion
【简答题】The father often blames his children for not being able to entertain themselves. This is unfair because they ________.
【简答题】行政基本方法包括法律政策方法、______和经济方法。
【多选题】Taxes being so high, the descendants of the wealthy class of the 19 th century are being forced to rent out their estates to paying guests.
A.
In the 19 th century, the wealthy class rented out its estates.
B.
Because of high taxes, families that were rich 100 years ago now rent out their estates.
C.
Guests pay high taxes when they rent old estates.
D.
Some families that were once wealthy are having trouble paying their taxes.
E.
High taxes have changed the lives of some of the old wealthy families.
【简答题】This being the case, we have to ask you to be so kind to extend the date of shipment to the 15 th of January, under cable advice to us.
【单选题】FDA suspected Sanofi-Aventis of______.
A.
being unqualified to make drugs
B.
scheming to do the fraud
C.
letting the misconduct go
D.
being unaware of the crime
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