单选题：The weather was crisp and clear and you could see the mounta

题目内容：

The weather was crisp and clear and you could see the mountains fifty miles away. A．fresh
B．hot
C．heavy
D．windy

参考答案：

答案解析：

Gardner thinks that his theory has a__________.

Gardner thinks that his theory has a__________.A．biological foundation B．musical

分类：卫生类题型：单选题

A 100-pound child should carry a backpack of more than 20 pounds.A．Right B．Wron

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Backpacks with wide, padded straps and a belt can help to avoid problems of spr

分类：卫生类题型：单选题

What Governor Tom Ridge said in the third paragraph means that__________.A．it i

分类：卫生类题型：单选题

Floods have undermined the foundation of the ancient bridge.A．weakened B．reache

分类：卫生类题型：单选题