根据英文句子及汉语提示写单词,注意单词形式。 1. I saw some chickens and them.(喂养) 2. Is Lisa talking on the phone?(再一次) 3. Elephants can walk for a long time and get lost. (从来没有) 4. We have to be quiet in the library.(也) 5. I sometimes play basketball for an hour.(一半)判断对错
一个直角三角形,以它的斜边为轴旋转一周,可以生成一个圆锥.
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