半径R的半圆卷成一个圆锥，则它的体积为（ ） A．324πR3 B．38πR3 C．5

35岁农民，因高热、全身肌肉酸痛、乏力7天、尿黄2天，于1982年8月5日入院。体检：眼结合膜充血，巩膜轻度黄染，肝肋下1.5cm。外周血象：白细胞数8.3×109/L，中性粒细胞0.70，淋巴细胞0.30，尿蛋白(+)。血清总胆红素52μmoL/L，丙氨酸氨基转移酶(ALT)140U/L，肥达反应：O为1∶40，H为1∶320。凝集溶解试验1∶400。外斐试验反应OX1∶80。根据以上资料考虑是以下哪种疾病

A．伤寒

B．斑疹伤寒

C．甲型急性黄疸型病毒性肝炎

D．钩端螺旋体病

E．流行性出血热

阅读理解。

     Making pulp (纸浆) and paper is a traditional industry in Canada. According to the Canadian Pulp and

Paper Association, Canada supplies 34% of the world's wood pulp and 49% of its newsprint paper. If these

paper products could be produced in some other way, Canadian forests could be left. Recently, a possible

way of producing paper has been suggested by agriculturalists and environmentalists: a plant called hemp (麻).

     Hemp has been grown for a long time. It produces fiber which can be made into paper, fuel, oil, food and

rope. For centuries, it was very important to the economies of many countries because it was used to make

big ropes used on sailing ships. The worldwide trading network would not have been possible without hemp.

Nowadays, ships' ropes are usually made from wire or fibers, but scientists are now suggesting growing hemp.

In fact, four times as much paper can be produced from land using hemp rather than trees, and many

environmentalists believe that the large-scale growing of hemp could reduce the pressure on Canada's forests.

     However, there is a problem: hemp is illegal in many countries of the world. This plant, which is related to

the plant from which a drug called marijuana (大麻毒品) is produced, is very useful for fiber, rope, oil and

fuel. In the late 1930s,a movement to ban the drug marijuana began, resulting in the banning of the growing

not only of the plant used to produce the drug, but also of the commercial fiber producing hemp plant. In fact,

the drug marijuana cannot be produced from the hemp plant, since it doesn't contain the active ingredient (成

分)in the drug. In recent years, many people try to make it legal to grow the plant and sell the fiber for

production.

1. Why is pulp and paper production important to Canada?

A. Canada needs to find a way to use all its spare wood.

B. Canada publishes a lot of newspapers and books.

C. Pulp and paper export is a major source of earning money for Canada.

D. Hemp is a traditional plant of Canada.

2. In the past worldwide trade, the plant hemp was used as _______.

A. a material for ships' ropes

B. a very rewarding export

C. fuel for ships

D. food for sailors

3. Hemp was banned because _______.

A. it is related to the marijuana plant

B. it can be used to produce marijuana

C. it was no longer a useful crop

D. it was harmful to the land

4. According to the passage, what can be used to make paper?

A. Trees.

B. Hemp plant.

C. Marijuana plant.

D. Both trees and hemp plant.

能说明分子不停地运动的现象是（　　）

A．花香四溢

B．漫天沙尘

C．落叶纷飞

D．细雨绵绵

在染后皂煮时，若皂煮过久。染料分子凝聚过大，则一般会引起（）

A、皂洗牢度下降

B、摩擦牢度下降

C、日晒牢度下降

药品所标明的适应证或者功能主治超出规定范围属于（）

A.可使用药品

B.不能使用药品

C.不合格药品

D.假药

E.劣药