现代高压开关中都采取了迅速拉长电弧的措施灭弧,如采用强力分闸弹簧,其分闸速度已达16m/s以上。
参考答案:对
If you grow up in ______large family ,you are more likely to develop _____ability to get on well with ______others .
A./,an the
B.a, the ,/
C.the ,an ,the
D.a, the ,the
Part 4
Questions 26-45
Newspapers
A.on
B.through
C.under
D.of