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【判断题】
A/D 转换器的作用是将数字量转为模拟量A.
正确
B.
错误
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皮皮学刷刷变学霸
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【简答题】听下面一段材料，回答第1-3小题。 1. Where is the bus when they are talking? A. On the way to the People's Square. B. At the People's Square. C. At the bus shop. 2. How will the man recognize the People's Square? A. ...
【单选题】I could have arrived much earlier, but I ____ in the traffic.
A.
would be caught
B.
was caught
C.
has been caught
D.
had been caught
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