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【判断题】
Delete和backspace的功能一样,都是删除键A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】当系统中纯滞后时间τ占有一定分量时，则对于采样周期T的选取，如下哪个是合理的。
A.
取 T ≈τ
B.
取 T ≈τ／ 2
C.
取 T ≈τ／ 5
D.
取 T ≈τ／ 10
【单选题】A Before， I thought that a man who was wise and good would become rich， but now I know this is not always true． I learned it from my teacher． He is both wise and good， but he is not rich at all． He ma...
A.
wise and good
B.
wise and rich
C.
good and rich
【单选题】He _____ still here till now when he was born in the city. [ ]
A.
stayed
B.
stays
C.
was
D.
was like
【单选题】Your suggestion that he ________ with us till next week is good.
A.
stay
B.
stays
C.
shall stay
D.
will stay
【简答题】Listen to the recording again and complete the blanks below to show Sandra and Jack's daily activities. Sandra is student of the University of (1) __________. She shars a (2) __________ in the city. E...
【简答题】常见的客户开发方法有哪些?
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