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【单选题】
( )—What film do you like best?A.
he Martian.It ________ shows a lot of imagination，________ has a sense of humor.
B.
too...to
C.
neither...nor
D.
either...or
E.
not only...but also
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【单选题】_____a problem with the laptop yesterday, but it wasn't very serious.
A.
It was
B.
There was
C.
There is
【简答题】电子计算机与其它计算工具的本质区别是().A. A:能进行算术运算 B. B:运算速度快 C. C:计算精度高 D. D:存储并自动执行程序
【简答题】A．Not at all. B．It's my pleasure. C．No problem. D．Thank you very much.
【单选题】（1）两列波的波程差为波长的整数倍时，干涉相长；（2）两列波的相位差为π的偶数倍时，干涉相长。
A.
仅（2）正确。
B.
仅（1）正确。
C.
（1）和（2）都正确。
D.
（1）和（2）都不正确。
【单选题】I can't find my pyjamas! They are ______________. [ ]
A.
very good
B.
very big
C.
lost