单选题：The Klondike was the scene of one of the biggest gold rushe

题目内容：

The Klondike was the scene of one of the biggest gold rushes the world has ever known． A．location
B．view
C．even
D．landscape

参考答案：

答案解析：

Whichmay NOT be a reason for higher cancer death rates among

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ExerciseWhether or not exercise adds to the length of life，it is common experie

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Over forty people participated in the study．A．Right B．Wrong C．Not mentioned

分类：卫生类题型：单选题