玲玲今年10岁,妈妈今年38岁,当玲玲20岁时,妈妈多少岁?
38-10=28(岁),28+20= 48(岁)
辨析填空。
A. strength/force/energy/power
1. He lifted the stone with all his _____.
2. The police had to use _____ when they took him to the police station.
3. As far as I'm concerned, economic, not military _____, is the wave of the future.
4. The hibernating animals hardly make any movement, hardly use any, and hardly need any _____ food.
B. lie/lay
5. The cock _____ on the ground _____ that he had _____ an egg.
6. The dictionary _____ where you _____ it when you left yesterday.
7. When we entered her room, we saw her clothes that she had left _____ around.
8. The man _____ there never tells a _____.
* * 毛滴虫的感染阶段、感染方式和常见寄生部位分别是()
A.包囊,经口感染, * * 后穹隆
B.成熟包囊,接触感染, * * 前穹隆
C.滋养体,输血感染, * * 前穹隆
D.滋养体,接触感染, * * 后穹隆
E.大滋养体,接触感染, * * 前穹隆