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【简答题】
在1 μ F的电容器两端加上 的正弦电压,求通过电容器中的电流有效值及电流的瞬时值解析式。若所加电压的有效值与不变,而频率增加为100Hz时,通过电容器中的电流有效值又是多少?
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【单选题】The village where the writer finally decided to settle down ______.
A.
had more pleasant weather than those in the plains
B.
was not far from the river
C.
had a great view sight of the plains
D.
was at the end of a rough road
【单选题】以下程序的输出结果是 #include＜iostream.h＞ long fun(int n) {long s； if(n=1||n=2) s=2； else s=n-fun(n-1)： return s； } void main() {cout＜＜fun(3)；=
A.
1
B.
2
C.
3
D.
4
【简答题】阅读理解。 There once lived in China a king and a queen who were very foolish. One day the queen had a baby daughter. When they saw their baby, they cried, 'My goodness!How small it is! It's toothless! It'...
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A.
he was still wearing clothes
B.
similar bodies had been found elsewhere
C.
there were traces of a hanging rope in the peat
D.
he hadn't been buried in a coffin
【单选题】Factory workers (had to) work (very hard) before, (so) (had farmers).
A.
had to
B.
very hard
C.
so
D.
had farmers
【简答题】There once lived in China a very foolish king and queen. One day the queen had a baby daughter. When they saw their baby, they both cried out, “My goodness! How small it is! It’s hairless and toothles...
【单选题】________ back to China, all the staff who had worked in Libya strongly felt that our country is very powerful. [ ]
A.
To fly
B.
Being flying
C.
To be flown
D.
Having been flown
【单选题】_____ back to China, all the staff who had worked in Libya strongly felt that our country is very powerful. [ ]
A.
To fly
B.
Flying
C.
To be flown
D.
Having been flown
【简答题】What are some techniques for meetings effective?
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