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【单选题】
应用传递函数法进行模态分析时，应该同时应用（）来识别虚假模态。A.
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B.
幅频响应曲线、响应曲线、传递率曲线、虚频响应曲线
C.
幅频响应曲线、互功率谱曲线、实频响应曲线、虚频响应曲线
D.
幅频响应曲线、响应曲线、实频响应曲线、虚频响应曲线
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举一反三
【简答题】A．If Phil is lucky, he might get a scholarship. B．There is no way in which Phil can win a scholarship. C．Phil is not going to chance his luck and try for a scholarship. D．Phil is not being given a cha...
【单选题】Which of the following might tell us that the youngest child was Phil's favorite?
A.
He was doing enough odd jobs.
B.
He was the one who tried to reach Phil.
C.
He was the one Phil worried about most.
D.
He was a high-school graduate.
【单选题】In Andrew Grovels opinion, which is more important, marketing or technology?
A.
Marketing is more important than technology.
B.
Technology is more important than marketing.
C.
Marketing is as important as technology.
【多选题】Which are the choices of marketing?
A.
advertising
B.
business networking
C.
direct marketing
D.
word of mouth marketing
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