搜题请搜索小程序“爱下问搜题”
问题 单项选择题

人民代表是我国国家权力机关的组成人员。下列属于人民代表义务的是（）。

①模范遵守宪法和法律

②保守国家机密

③向人民代表大会提出议案

④密切联系群众

⑤接受选民和原选举单位的监督

A.①②③④

B.①②④⑤

C.②③④⑤

D.①③④⑤

答案

参考答案：B

阅读理解
阅读理解。
     Have you ever rubbed your hands together when they get cold? Why do we do that? We do that for
friction. Friction happens when two things that aren't very smooth rub together to make heat energy. The
faster you rub two things together, the more friction (and heat) you can make. Let's discover friction!
WHAT YOU'LL NEED:
      ● Soap     ● Water    ● Your hands!
WHAT TO DO:
     1. Make sure your hands are dry.
     2. Rub your hands together until you feel the heat of your hands.
     3. Now, use soap and water to get your hands very slippery (滑的).
     4. Try to make friction happen while your hands are slippery.
     5. Please write down what has happened.
LET'S TALK!
     Friction is an energy that happens when two things rub together. When friction happens,
it makes heat! When your hands are slippery, they won't make very much friction and your
hands won't get so hot.
DID YOU KNOW? 
     1. Friction happens when you stop your fast running bike.
     2. Ancient people made fires by rubbing two pieces of wood together. Friction happened
though they didn't know it. 
_________    
     Friction is everywhere. Have you ever noticed situations where friction is happening?
If not, ask your parents to take you out in a car. If it is not too hot, touch the tires (轮胎)
of the car before and after a short drive to see how much warmer they get from friction.
1. You'd better make your hands ________ to get heat when you rub them.
A. slippery
B. dry
C. wet
D. smooth
2. What does the word "friction" in this text mean in Chinese?
A. 摩擦
B. 冷却
C. 膨胀
D. 震动
3. ________ is NOT an example of friction.
A. Bike riding
B. Car driving
C. Hands rubbing
D. Friction discovering
4. What's the last column (栏目)?
A. THINK IT OVER!
B. WHAT HAPPENED?
C. EVERYDAY ACTION:
D. WORK WITH PARENTS!
5. This text is most probably ________.
A. a science report
B. a car advertisement
C. a rubbing introduction
D. a chemistry programme
查看答案
问答题 简答题

湘西工业已初步形成的五大工业支柱产业是什么？
查看答案