问题 单项选择题 A1/A2型题

固体药物制剂稳定性的特点不包括()

A.一般属于多相体系的反应

B.固体药物降解速度较慢

C.降解反应一般始于固体外部

D.固体制剂中的均匀性较液体制剂好

E.药物的固体剂型在降解过程中常出现平衡现象

答案

参考答案:D

解析:固体药物制剂稳定性具有如下特点:一般属于多相体系的反应,反应系统中可能包括气相、液相和固相;固体药物降解速度一般较慢,需较长时间和精确分析方法;降解反应一般始于固体表面,反应过程中,内部分子受到已反应的外部分子的保护;固体药剂中的均匀性较液体药剂差,重现性不如液体药剂;药物的固体剂型在降解过程中常出现平衡现象,此时温度与反应速度的关系宜适用Van't Hoff方程。所以答案为D。

阅读理解

     The World Health Organization says obesity rates are rising in Pacific island countries. So, too, are

health problems linked to being overweight.

     The WHO says a major reason for the rising obesity rates is an increase in imported foods. It says

many Pacific islanders have replaced their traditional diets of vegetables and fruits with imported

processed foods.

     Dr. Temu Waqanivalu is with the World Health Organization's South Pacific office in Suva, Fiji. He

says many of the imported products lack nutritional value.

      Temu Waqanivalu said: "In some of the places, you'd be amazed to see how a bottle of Coke is

cheaper than a bottle of water. I think that represents the kind of offenvironment we've created that

doesn't really encourage or make lifestyle choices an easy choice for the population."

     And a lack of physical activity among many Pacific islanders only adds to the obesity problem.

     The WHO says more than 50 percent of the population is overweight in at least ten Pacific island

countries. The rate is as high as 80 percent among women in the territory of American Samoa.Fiji had

the lowest obesity rate at 30 percent.

     In all, almost ten million people live in Pacific island countries. The WHO estimates that about 40

percent of them have health disorders related to diet and nutrition.

     Diabetes rates are among the highest in the world. Fortyseven percent of the people in American

Samoa have diabetes. So do 44 percent of the people in Tokelau, a territory of New Zealand.

     By comparison, the diabetes rate is 13 percent in the United States, a country that has its own

problems with rising obesity.

      Officials also note an increase in nutritional problems like anemia and not enough vitamin A in the

diets of Pacific islanders. Dr.Waqanivalu says treating conditions related to obesity and diet puts

pressure on limited health resources and budgets. 

1. The main reason why obesity rates are rising in many Pacific islanders is ________.

A. the change of society

B. the change of eating habits

C. the change of life style

D. lack of exercise 

2. Imported products lack nutritional value but people love to buy them because ________.

A. they are cheap

B. they are popular

C. they are tasty

D. they are convenient to get

3. How many people living in Pacific island countries have health disorders?

A. 1 million.  

B. 4 million.

C. 6 million.  

D. 10 million.

4. The percentage of diabetes rates in American Samoa is ________.

A. optimistic  

B. steady

C. worrying  

D. low

5. If the passage appears in a newspaper, which column will it be?

A. Science.  

B. Nature.

C. Entertainment.  

D. Health.

单项选择题 A1型题