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【单选题】
处理( ) 的电子电路是数字电路A.
交流电压信号
B.
时间和幅值上都连续变化的信号
C.
直流电压信号
D.
时间和幅值上都离散的信号
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反馈参考答案：
举一反三
【单选题】How did the robot behave at the beginning of the test?
A.
It rotated its wings through 90 degrees
B.
It twitched（骤然一抽）but gradually gained height
C.
It was twitched and broke down
D.
It landed not 10ng after the test
【单选题】How did the robot behave at the beginning of the test?
A.
It rotated its wings through 90 degrees．
B.
It twitched but gradually gained height．
C.
It was twitched and broke down．
D.
It landed not long after the test．
【简答题】Airplanes come in many different shapes and sizes depending on the mission of the ____1____, but all modern airplanes have certain components in common. These are the fuselage, wing, tail assembly and...
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