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【判断题】
积相同的物质,相同的条件下其溶解度也一定相等。A.
正确
B.
错误
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参考解析：
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皮皮学刷刷变学霸
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【简答题】什么是乐音?什么是噪音?
【单选题】(Single choice) 5. A pulse is applied to each input of a 2-input NAND gate. One pulse goes HIGH at t = 0 and goes back LOW at t = 1 ms. The other pulse goes HIGH at t = 0.8 ms and goes back LOW at t =...
A.
It goes LOW at t = 0 and back HIGH at t = 3 ms.
B.
It goes LOW at t = 0.8 ms and back HIGH at t = 3 ms.
C.
It goes LOW at t = 0.8 ms and back HIGH at t = 1 ms.
D.
It goes LOW at t = 0.8 ms and back LOW at t = 1 ms.
【单选题】(Single choice) 6. A pulse is applied to each input of a 2-input NOR gate. One pulse goes HIGH at t = 0 and goes back LOW at t = 1 ms. The other pulse goes HIGH at t = 0.8 ms and goes back LOW at t = ...
A.
It goes LOW at t = 0 and back HIGH at t = 3 ms.
B.
It goes LOW at t = 0.8 ms and back HIGH at t = 3 ms.
C.
It goes LOW at t = 0.8 ms and back HIGH at t = 1 ms.
D.
It goes HIGH at t = 0.8 ms and back LOW at t = 1 ms.
【简答题】乐音/噪音
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