题目

We should equip our child ____ a good education. A . to B . in C . with D . for 答案:C夏天对着开水杯“吹气”,能使开水变凉,这是因为    ,使水温下降.冬天对着手“哈气”,使手变暖,这是因为水气遇冷    ,使手表面温度升高.
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