某城市自来水收费标准如下表所示：月用水量不超过12吨部分超过12吨不超过18吨部

一Have you ever been to the new clothing shop _____is just opened?       

—Yes. I went there yesterday.

A. what       B. where    C. that

阅读理解。

     Autumn and winter are cold and flu seasons. Will the old advice about dressing warmly help prevent a

cold, or if you get sick, should you follow the old saying, "feed a cold and starve a fever?" And what about that fever? Should you take medicine to reduce your temperature, or is it better to let the body treat the

fever itself? Everyone seems to have an answer. But is popular wisdom valuable?

     Doctor Nelson knows a lot about cold and flu seasons. Nelson says research may be just starting to

provide proofs for long-held beliefs. For example, scientists for years were against the idea that getting

cold and wet might cause colds or flu. But recent studies have shown that cold temperatures cause stress

on the body, and that stress can create conditions more inviting to viruses. So maybe it does make sense

to wrap up warmly before going outside.

     And what about feeding a cold and starving a fever? Nelson says if you have a cold and are hungry,

you should eat. But a fever, especially a high one, suggests a more serious problem. He says people are

usually not hungry when they have a high fever. Eating might even make a person sick. But drinking

enough water is important. A fever easily makes the body lose water.

     Finally, when should you treat a fever? Nelson says a fever should be treated if it stays at

40℃ or above for a day or more. A high temperature can damage brain cells. The doctor also believes in

treating a fever if it prevents a person from sleeping.

     Medicine like aspirin, for example, can be used to reduce pain and fever. But aspirin should not be given to children because it can cause serious problems.

1.We can learn from the passage that Doctor Nelson________. 

A. doesn't believe in the old advice about preventing colds

B. is now trying his best to provide proofs for long-held beliefs.

C. doesn't think it necessary to see a doctor immediately if a person has a temperature of 40℃

D. doesn't think it necessary to treat a fever even if it prevents someone from sleeping.

2. According to Doctor Nelson, if someone catches a fever, he should________.

A. bathe in cold water

B. drink enough water

C. try to eat something

D. take some exercise outside

3.Which of the following is Not mentioned in the passage?

A. When people should treat a fever

B.  Whether the old advice about preventing a cold is valuable.

C. What the medicine , aspirin, is used for.

D. Why people should eat when having a cold.

4.The passage suggests that_______.

A. aspirin can damage train cells if an adult takes too much of it.

B. it is easier for people to catch colds when their bodies are stressed.

C. some old advice about preventing colds doesn't make any sense.

D. the idea that getting cold can cause flu was proved true years ago.

下列反应的离子方程式表达正确的是（）。

A.足量的硫酸铝溶液与纯碱溶液反应：

B.NaHS溶液的水解：

C.Fe（OH）与足量的HI溶液反应：

D.向亚硫酸氢钠溶液中加入NaOH溶液：

撰写"医家五戒十要"的医家是（）

A.李时珍

B.陈实功

C.孙思邈

D.张仲景

E.华佗

WJ-7型扣件弹条分为（）

A.W1

B.W2

C.X1

D.X2