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单项选择题

如图所示的导前移相网络的反馈系数的相频特性为（　）。​
‍​

A．
B．
C．
D．
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单项选择题
下列天体辐射波段波长从短到长的是（ ） A.
X射线，γ射线,可见光,红外光 B.
可见光,红外光,紫外光,X射线 C.
可见光,红外光,微波,无线电波 D.
X射线,紫外光,可见光,红外光
单项选择题
① Mr. Brown is to attend and chair the meeting.
② Please power your phone off during the meeting.
 ③ The eleven board members are to vote for the final decision of the necessity of the two newly arranged positions.
④ Notice is hereby given that a meeting of stockholders will be held at Room 109 on May 21st,2017 at 10:30 a.m. .
⑤ If necessary, contact Mr. Wilson for more information about the meeting.
⑥ The meeting aims to achieve a consensus over whether there should be an increase of the monthly bonus, to hold a discussion about the new production plan, and to vote for the newly set positions.  
A、⑤③⑥②①④
B、④⑥①③②⑤
C、③⑤⑥①④②
D、④⑤②①③⑥
判断题
形象的构成是由内在形象和外在形象构成。
A、正确
B、错误
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