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【判断题】
反馈控制系统的作用是:抵抗扰动,服从给定。A.
正确
B.
错误
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
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皮皮学刷刷变学霸
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【简答题】One day Jerry borrowed a pot from his neighbor Tom. The next day he brought it back with another little pot inside. "That's not mine," said Tom. "Yes, it is," said Jerry. "While your pot was staying w...
【单选题】I don't know why Wang Xiaoming _____ us recently. [ ]
A.
hasn't wrote
B.
hasn't written
C.
doesn't write
D.
isn't writing
【单选题】Tom ________ a letter from Terry for a long time.
A.
didn’t receive
B.
hasn’t got
C.
didn’t have
D.
hasn’t heard
【单选题】They were still working in the fields __ it had got dark.
A.
even if
B.
as if
C.
in so far as
D.
so that
【单选题】Even enemies were sometimes _____ to admit the truth.
A.
compelled
B.
intense
C.
prominent
D.
1 foster
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