乙类互补对称功率放大电路中的交越失真实际上就是截止失真。
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My roommate was able to swim across the river easily while I did it _________.
A. difficultly
B. with difficulty
C. in difficulty
D. out of difficulty
This pen won't _________. Can I use yours?
A. write
B. be written
C. writing
D. be writing
He was reading a message written __________ red pen.
A. with
B. in
C. for
D. by
The Huayang Lake lies __________the west of our campus.
A. in
B. on
C. around
D. to
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