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【单选题】
设单位反馈系统的开环传递函数为 ,则此系统稳定的K值范围为()。A.
K<0< /div>
B.
K>0
C.
0
D.
0
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【单选题】Chang also said the franchise approach would have a great ________on local drug retail market.
A.
mission
B.
confidence
C.
impact
D.
commitment
【单选题】The Great Wall is called "Wan Li Chang Cheng" because it is a "Ten Thousand-li-long Wall".
A.
T
B.
F
【判断题】The Great Wall is called “ Wan Li Chang Cheng ” because it is a “ Ten Thousand-li-long Wall ” .
A.
正确
B.
错误
【单选题】听力原文：When did you last talk to Mr. Green? (A) I prefer it in red. (B) The presentation will last about 40 minutes. (C) Yesterday on the telephone. (11)
A.
B.
【单选题】I ________________ a strip of red paper round the neck of the vase to distinguish it from the others.
A.
wound
B.
wounded
C.
curved
D.
bound
【单选题】A vessel not under command making way at night would show ______.
A.
two all-round red lights in a vertical line
B.
anchor lights and sidelights
C.
two all-round white lights in a vertical line，sidelights and a stern light
D.
two all-round red lights in a vertical line，sidelights，and a stern light
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