若12x2m-1-8＞5是一元一次不等式，则m=______．

在两样本均数比较的t检验中，无效假设是（）

A.两样本均数不等

B.两样本均数相等

C.两总体均数不等

D.两总体均数相等

E.样本均数等于总体均数

水中爆炸多引起（）。

A.耳、胸部损伤

B.颅脑损伤

C.会阴部损伤

D.腹内脏器损伤

E.四肢损伤

阅读理解。

      The medical world is gradually realizing that the quality of the environment in hospitals may play a

significant role in the process of recovery from illness.

      As part of a nationwide effort in Britain to bring art out of the galleries (画廊) and into public places,

some of the country's most gifted artists have been called in to change older hospitals and to soften the hard

edges of modern buildings. Of the 2,500 National Health Service hospitals in Britain, almost 100 now have

significant collections of modern art in corridors (走道), waiting areas and treatment rooms.

      These recent initiatives(new plans) owe a great deal to one artist, Peter Senior, who set up his studio at

a Manchester Hospital in Northeastern England during the early 1970s. He felt the artist had lost his place in

modern society, and that art should be enjoyed by a wider audience. 

      A common hospital waiting room might have as many as 5,000 visitors each week. What a better place

to hold regular exhibitions of art and paintings, in the outpatients waiting area of the Manchester Royal

Hospital in 1975. Believed to be Britain's first hospital artist, Senior was so much in demand that he was soon

joined by a team of six young art school graduations. 

     The effect is striking. Now in the corridors and waiting rooms, the visitor experiences a full view of fresh

colors, playful images and restful courtyard.

     The quality of the environment may reduce the need for expense when a patient is recovering from an

illness. A study has shown that patients who had a view onto a garden needed half the number of strong

painkillers compared with patients who had no view at all or only a brick wall to look at.

1. What does the author mean by using the phrase "to soften the hard edge of modern buildings" in the second

     paragraph? [ ]

A. To hold exhibitions of art and paintings in hospitals.

B. To tear down the old hospital and build a new one.

C. To decorate hospitals with art collection.

D. To paint the walls of hospitals in soft colors.

2. What is true about Peter Senior? [ ]

A. A famous doctor in Manchester Hospital and a gifted artist.

B. Britain's first hospital artist and a patient in Manchester Royal Hospital.

C. One of the six young art school graduations.

D. A gifted artist and a pioneer introducing art into hospitals.

3. According to Peter Senior, we can infer that _____.[ ]

A. modern hospitals have a lot of patients

B. art is not appreciated by a large number of people in modern society

C. patients should be encouraged to learn painting

D. artists can not find their positions in modern society

4. What does the last paragraph suggest? [ ]

A. The improvement of hospital environment may help the patients recover from illness.

B. The improvement of hospital environment may cost the patients more than before.

C. The patients needed no painkillers when they had a view of a painting.

D. The patients had no pain at all after the improvement of hospital environment.

壁温接近换热系数（）一侧流体的温度。

装载有毒害、腐蚀性货物的船舶，排放含有该物质的洗舱水必须在距最近陆地（）海里以外，水深25米以上。

A.3

B.7

C.12

D.50