搜题请搜索小程序“爱下问搜题”
问题 填空题

成熟的苹果离开树枝后，总是落向地面，这是由于苹果受到______的缘故，这个力的施力物体是______．

答案

成熟的苹果离开树枝后，总是落向地面，这是由于苹果受到重力的缘故，这个力的施力物体是地球．

故答案为：重力；地球．

单项选择题 A1型题

发生于上肺野的圆形病灶多见于()

A.结核球

B.肺癌

C.肺炎

D.肺脓肿

E.以上均不是
查看答案
填空题

根据句意及首字母提示完成下列各单词。

1. I don’t think your shoes are made of real l _______.

2. —What do you think of this shirt?

    —Well, I like its s_______, but I don’t like its colour.

3. Sandy likes doing nothing. She is always very l_______.

4. — Let me help you carry the box.

    —No, thanks. It’s not h _______.

5. Look at that boy. He is very s_______ in his new coat.

查看答案