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【简答题】
假设有某一开放空间光通信系统,光发射机发射光信号功率为10mW,空间传输损耗为35dB,那么到达接收机的光信号功率为多少W? Suppose there is an optical communication system in open space. The power of optical signal emitted by the optical transmitter is 10mW and the loss of spatial transmission is 35dB. Then, how much W is the power of optical signal reaching the receiver?
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【单选题】The manager made a farseeing decision ______ what she had said.
A.
in the course of
B.
in the light of
C.
in favor of
D.
in the face of
【简答题】摩根定律又称为 。
【简答题】摩根定律又称为 定律 。
【单选题】The manager made a farseeing decision ______ what she had said.
A.
in the light of
B.
in the course of
C.
in favor of
D.
in the face of
【简答题】摩根定律又称为 。
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