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【单选题】
The singer is popular__young people.A.
at
B.
with
C.
in
D.
for
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【简答题】标有 “ 6V , 3W ”的小灯泡 L 与额定功率为 6W 的电阻器 R 按如图电路连接在一个恒定电压的电源上,闭合开关 S 时,灯 L 正常发光,且电流表的示数为 0.75A. 求 : ( 1 )电源电压;( 2 )流过小灯泡的电流;( 3 )电阻器 R 的电阻值;( 4 )电路的总功率。
【单选题】对于经济开放意识中的一些概念理解有误的是()。
A.
“经济爱国主义”是一种假设，不是必然的
B.
有“经济爱国主义”就有“经济卖国主义”这种说法
C.
有国家边界，就有“经济国界”
D.
有经济国界，就有“经济爱国主义”
【单选题】Many women ______ a good salary, but they chose to stay at home for the family.
A.
must make
B.
must have made
C.
should make
D.
could have made
【单选题】'That latest car must have cost you a pretty penny'. 'Oh, no, ______'.
A.
it didn't
B.
it mustn't
C.
it hasn't
D.
it must haven't
【单选题】The project must be ______ in accordance with the latest estimate of the cost.
A.
modified
B.
discarded
C.
submitted
D.
yielded
【简答题】Always acting in a strange way, Einstein must have _____ to people around to be mad. A. shown B. imagined C. appeared D. thought
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