正常脉象的特点是什么？

阅读理解。

　　The best way of learning a language is using it.The best way of learning

English is talking in English as much as possible.Sometimes you'll get your

words mixed up(混合) and people will not understand you.Sometimes people

will say things too quickly and you can't understand them.But if you keep your

sense of humor(幽默感),you can always have a good laugh at the mistakes you

make.Don't be unhappy if people seem to be laughing at your mistakes.It's better

for people to laugh at your mistakes than to be angry with you,because they don't

understand what you are saying.The most important thing for learning English

is:"Don't be afraid of making mistakes because everyone makes mistakes."

1. The writer thinks that the best way for you to learn a language is _______.

A. writing  

B. using it

C. listening  

D. learning grammar

2. What should you do in learning English?

A. Be careful not to make any mistake.

B. Write as quickly as you can.

C. Speak English as much as you can.

D. Laugh more often.

3. When people laugh at your mistakes,you should _______.

A. not care  

B. be happy

C. feel worried  

D. be unhappy

4. When you make a mistake,you should _______.

A. keep quiet  

B. get angry

C. be kind  

D. keep your sense of humor

5. The story tells us:_______.

A. Only foolish(愚蠢的) people make mistakes

B. Few people make mistakes

C. People never make mistakes

D. There is no one who doesn't make mistakes

下列图片展示了当今世界一些重要组织的标识，代表世界上最大经济体的标识是

A               B                  C                          D

李先生在2000年9月写了一份遗嘱，并去做了公证。由于担心后人不按照他所写的遗嘱来进行，于是他在2001年9月又写了一份遗嘱，并指明让自己的朋友张律师来监督遗嘱的执行。2001年9月，他又去理财规划师那里就自己的财产传承规划事宜进行咨询。

下列关于李先生这几份遗嘱的说法，正确的是（）。

A.2000年9月的遗嘱有效

B.2000年9月的遗嘱无效

C.2001年9月的遗嘱无效

D.2001年9月的遗嘱有效

E.两份遗嘱均有效

膨胀土的参数如表，计算胀缩变形量接近（）。

A.34mm

B.30mm

C.28mm

D.147mm