三视图的投影规律是（）与左视图宽相等。A.主视图 B.俯视图 C.仰视图 D.右视图

选出下列各项中成语（或熟语）使用不规范的一项：（）

A．经过一个多月的斗争，来势汹汹的敌人在我军民合力打击下，陷入了进退维谷的境地。

B．黄金周期间来连云港旅游的客人们赞叹道：“连云港果然名不虚传，秀色可餐，是人间的又一天堂。”

C．科学工作者，既要实事求是，又要异想天开，这才有助于事业的发展。

D．在广州混了几年的李一鸣，这次回来搞起了房地产，开着宝马到处跑，俨然一个大老板，叫人不得不另眼相看。

阅读理解。

     Researchers have shown that music has an important effect on one's body and mind. In fact, there is a

growing field of health care known as Music Therapy, which uses music to treat diseases. Even hospitals

are beginning to use music therapy. This is not surprising, as music affects the body and mind in many

powerful ways.

     Researchers have shown that quick music can make a person feel more alert (警觉的), while slow music

can produce a calm, deep thinking state. Also, researchers have found that music can change brainwave

activity levels. This can help the brain to change speeds more easily on its own as needed, which means that

music can bring lasting benefits to your state of mind, even after you've stopped listening.

     Breathing and heart rate can also be influenced by music. This can mean slower breathing, slower heart

rate, and a relaxing response. This is why music and music therapy can help reduce the damaging effects of

long-term stress, greatly promoting not only relaxation, but health. Music can also be used to bring about a

more positive state of mind, by helping to keep worries away.

     Music has also been found to bring many other benefits, such as lowering blood pressure and reducing

the risk of strokes among others. It is no surprise that so many people are considering music as an important

tool to help the body become or stay healthy.

1. What can we know about music therapy? [ ]

A. It is a type of music.

B. It is a research about music.

C. It is a kind of disease affected by music.

D. It is a method of using music to help treat diseases.

2. According to the second paragraph, we can know that _____. [ ]

A. music with different speeds has different effects

B. quick music is not good for one's health

C. slow music can help one think more slowly

D. music will have less benefit after one stops listening

3. The reason why music can help deal with stress is that _____.[ ]

A. it is used by many hospitals

B. it can help change brainwaves

C. it is beneficial to breathing and heart rate

D. it can bring a more positive state of mind

4. The passage is mainly about _____. [ ]

A. the importance of music therapy

B. the benefits music can bring to treat diseases

C. a research on the effect of music

D. the diseases music can help to treat

Mowry阿尔辛蓝过碘酸希夫（ABPAS）染色法常用于显示（）

A.结缔组织

B.糖原

C.黏多糖

D.纤维素

E.肌肉

开采矿产资源的主体是( )。

A．个人矿山企业

B．国有矿山企业

C．集体矿山企业

D．地方矿山企业

蒸发器产生的不合格水主要用于（）。

A.氢铝洗水

B.蒸发循环水

C.赤泥洗水

D.电厂锅炉用水