根据《药品生产质量管理规范》，必须使用独立的厂房与设施生产的药品种类是（）A．含生物

阅读短文，选择正确答案。

    Asia is home to more than half of the world's population and three of the four most crowded countries are in

Asia. China, India, and Indonesia alone have more than 2.5 billion people.

    Until recently, most Asian nations fell behind the western countries in many fields. Government reform(改革),

however, has led to important progress in each of these Asian countries. Across the area, education systems

have been improved and economies (经济) have been growing. Most Asian countries now have a system of

compulsory (义务的) education. Many countries have recently allowed private universities to be built, which

was not allowed before. There are more chances for students to go to university now.

    However, in Asia, there are still not enough chances for students to get higher education and many people

prefer to go abroad for further study. As a result, India, China, South Korea, Japan and other Asian countries

send thousands of students to study in the United States and Europe each year.

    Part of the people in Asian countries can speak English, and English has become the most important language

for business across the area. The percentage (百分比) is the largest in Japan, Singapore, the Philippines,

SriLanka and South Korea. Many people in China, India and Malaysia can also speak English. Some countries

have made English part of the primary and secondary education programme. In some countries, children begin

to study English even at the age of 4 or 5.

1. The population of Asia is about            . [ ]

A. 2.5 billion

B. half of the world's population

C. 1.3 billion

D. 6 billion

2. Most Asian countries              the western countries in many fields. [ ]

A. are better than

B. are more powerful than

C. get greater progress than

D. are not as good as

3. In the past,              was not allowed in many Asian countries. [ ]

A. speaking English

B. moving to other countries

C. building private universities

D. building middle schools

4. Why do so many students in Asia go to study in the USA and Europe?[ ]

A. Because they are rich.

B. Because there are not enough chances for students to get higher education in Asia.

C. Because they don't want to work hard.

D. Because they can speak English very well.

5. Which of the following is NOT true? [ ]

A. There're more than 2.5 billion people in China, India and Indonesia.

B. The economies in Asian countries are becoming worse.

C. Education in Asia has had great changes.

D. In some Asian countries, English has become very important for business

面粉主要是由小麦种子的哪一部分加工成的[ ]

A．子叶

B．胚

C．胚乳

D．种皮

[1]爱护水资源应我们该做好哪两方面：

①______；②______．

[2]为保护好空气，说出两个可行的方法：

①______；②______．

[3]为说明分子在不停地运动和分子间有间隔，请各举一例客观事实．

①______说明分子在不停地运动；

②______说明分子间有间隔．

转继承

进程P_A不断地向管道写数据，进程P_B从管道中读数据并加工处理，如下图所示。如果采用PV操作来实现进程P_A和进程P_B间的管道通信，并且保证这两个进程并发执行的正确性，则至少需要（）

A．1个信号量，信号量的初值为0

B．2个信号量，信号量的初值分别为0、1

C．3个信号量，信号量的初值分别为0、0、1

D．4个信号量，信号量的初值分别为0、0、1、1