单选题：He inspected the car before he bought it．

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题目内容：
He inspected the car before he bought it． A．invested
B．managed
C．maintained
D．examined
参考答案：
答案解析：

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I thought it would rain，but the clouds have vanished and it'

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Why do researchers develop a new device to monitor signs of

Why do researchers develop a new device to monitor signs of landslides?A．because

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In hostage situations the US police forces repeatedly play pop songs at high vol

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