防爆液压绞车的电气部分由控制各种电气设备的启动器和()两大系统组成。
A.操作保护
B.冷却器
C.滤油器
D.油箱
参考答案:A
读短文,选择。
In winter some people get sick in the cold weather. If you don't wear enough clothes, you will have
a cold. How does it feel if you have a cold?You will feel very tired. Your head may hurt badly. Your
temperature (体温) will be higher. You may also have a fever. But don't worry too much, go to see a
doctor first. Take some medicine and stay in bed for a few days. And drink lots of hot water. Then
you will get well soon.
1. People feel sick in winter because it's __ __.
A. warm
B. cold
2. If you have a cold you will feel .
A. tired
B. happy
3. If your temperature is higher than 37℃, you will ____.
A. have a cold
B. have a fever
4. If you are sick, you must ____.
A. see a doctor
B. go to school
5. ____ is good for you when you're sick.
A. Drinking hot water
B. Drinking cold water
幼儿的具体形象思维有哪些特点?