圆锥滚动轴承的组成：轴承、_____、________、______通气栓、密封座、

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

函数f（x）=alnx-bsinx+3有反函数的充要条件是（　　）

A．a=0且b≠0

B．b=0且a≠0

C．a=b=0

D．a=0或b=0

下列各证，应选用“寒因寒用”治疗的是（）。

A.实寒证

B.虚寒证

C.真热假寒证

D.真寒假热证

E.寒热错杂证

综合性学习。（6分）

班级召开以“触摸中外风流人物”为主题的班会活动，请你完成以下任务。

小题1:【活动一：我会概括】根据以下材料，用精炼的语言概括奥巴马位居2011年度全球最有权势人物榜首的理由。

链接材料：据美国《福布斯》杂志报道，福布斯2011年度全球最有权势人物榜日前揭晓，美国总统奥巴马重登榜首。《福布斯》表示，将奥巴马评为最具有权势人物主要是因为美国“依然是世界上最强大的国家，是最大的经济体，军事实力无人能敌”。

理由是：奥巴马                                                   

小题2:【活动二：我会推荐】班级开设“风流人物榜”，小张同学推荐了方舟子。请你根据下面提供的资料，概括出推荐理由。（3分）

资料：方舟子以自己创办的新语丝和博客、微博为基地、利用互联网来进行打假，引起了一股声势浩大的打假旋风。被他揭露的造假人物有唐骏、李一、乐嘉、李开复以及中学生喜欢的作家韩寒。方舟子质疑韩寒之父代笔为子写作，“代笔门”引发的网络大论战持续至今，“挺韩派”和“倒韩派”各执一词。因为揭露真相，方舟子多次遭到威胁和报复，但他像个孤独的斗士，始终站在“造假者”的对面。

推荐理由：                                                           

小题3:【活动三：我会拟写】风流人物总让我们感动，总有一种力量震撼着我们的心灵。请阅读中外风流人物的座右铭，试着给自己也拟写一条。（2分）

美国苹果公司创始人乔布斯的座右铭是：创新无极限！只要敢想，没有什么不可能。

中国当代著名数学家苏步青的座右铭是：今天能做完的事，绝不拖到明天。

我的座右铭：                                                           

下列哪一项不是脂肪肝的CT表现（）

A.肝脏密度降低，重症可呈负值

B.局灶性脂肪浸润周围可见正常肝脏

C.肝脏密度低于脾脏

D.肝内血管影模糊或相对高密度

E.增强扫描可见血管变形或移位