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【单选题】
低压配电系统由低压配电装置和配电线路组成,配电级数一般不宜多于( )级。A.
二
B.
三
C.
四
D.
五
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【简答题】函数 的图象在点 处的切线的倾斜角为 A． B． C． D．
【单选题】--- I’ll be away on a business trip. Could you mind 1ooking after my cat? --- Not at all. .
A.
I’ve no time
B.
I’d rather not
C.
I’d like it
D.
I’d be happy to
【单选题】He is trying to swim out to the beacon and back. He must be insane to have _______________ such a thing. The current is far too strong.
A.
obliged himself to
B.
committed himself to
C.
engaged himself to
D.
resolved himself to
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