如图，一块厚度、密度均匀的长方形水泥板放在水平地面上，甲、乙

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问题选择题

如图，一块厚度、密度均匀的长方形水泥板放在水平地面上，甲、乙两名搬运工人分别用竖直向上的力F_甲、F_乙使其一端抬离地面．则

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A．F_甲＞F_乙

B．F_甲＜F_乙

C．F_甲=F_乙

答案

答案：C

填空题

用词的适当形式填空。

1. Lily usually _______ (walk) to school. But she _______ (not walk) yesterday.

Because she had a sore foot. But now she is all right. She _______ (walk) tomorrow.

2. Look! He _______ (lie) on the floor.

3. John is _______ (tall) in our class.

4. Linda _______ (babysit) her sister next Sunday.

5. He usually spends one and a half hours _______ (do) his homework every day.

6. My father _______ (cut) one watermelon just now.

7. He is _______ (good) at English than me.

8. He was late because of _______ (get) tip late.

单项选择题

下列各项，不属乌梅丸组成药物的是（）

A.细辛、干姜

B.黄连、黄柏

C.附子、当归

D.白术、生姜

E.人参、桂枝