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【判断题】
电容的储能不可能为负。A.
正确
B.
错误
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】(16)已知各变量的类型说明如下:int i=8,k,a,b;unsigned long w=5;double x=1.42,y=5.2;则以下符合C语言语法的表达式是()。(2.0分)A. a+=a-=(b=4) * (a=3) B. a=a*3=2 C. x%(-3) D. y= float(i)
【简答题】将下列十进制数分别转换成8421BCD码、5421BCD码、余3码。 (1)356 (2)712
【单选题】The author indicated that Mason's brilliant leadership ability ______.
A.
was exercised throughout his life
B.
had been recognized only by the generations that followed him
C.
was less important historically than his brilliance as lawyer
D.
emerged powerfully, but for a brief time only
【单选题】To their joy, the couple the house and found the missing ring.
A.
got through
B.
went through
C.
Lived through
D.
Looked through
【单选题】The author implies that Nepolitans' affection for the city ______.
A.
was unrealistic
B.
went a bit too far
C.
was extraordinary
D.
gave rise to concern
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