热气融霜系统如不设通冷凝器进口的回液管，融霜后期如排气压力太高应（） A.稍开冷凝器

判断下列句子，如果正确的打“√”，错误的打“×”。

( ) 1. A lion has a mane.

( ) 2. The rope on the hole.

( ) 3. Where does a bird live?

( ) 4. The monkeys is hugging.

阅读理解

     Qian Xuesen is one of the pioneers of China's space science. As a worldfamous expert on aerospace

rockets and aerodynamics,he obtained great achievements in the areas of applied mechanics,engineering

cybernetics and system engineering and made distinguished contributions to the foundation and

development of Chinese aerospace undertaking(事业)．

     Graduated from Shanghai Jiaotong University in 1934,Qian Xuesen went to the United States to study

in MIT,Massachusetts Institute of Technology,one year later. After receiving master's degree in MIT,he

went to study in California Institute of Technology and received PhD degrees in both aerospace and

mathematics.

     In 1955,six years after the founding of People's Republic of China,Qian Xuesen returned to his

motherland. His return brought China the hope of developing space science and its own missiles.

     In 1956,Qian Xuesen put forward "Proposal on the Development of China's Aviation Industry for

National Defense". With the support from Zhou Enlai,the premier,and marshal Nie Rongzheng,Qian

Xuesen began to prepare for the establishment of China's first missile and rocket research and

development structure,the Fifth Research Institute of State Ministry of Defense. Henceforth(从此以后),he has long been in charge of the chief technological research and development of China's missile,rocket and

spacecraft.

     Due to research and development led by Qian Xuesen,China successfully exploded its first atom bomb in 1964. Later,China launched its first manmade satellite,Dong Fang Hong I,to the earth orbit on April 24,

1970,becoming the fifth country in the world to independently launch satellite following the former Union of Soviet Socialist Republics,the USA,France and Japan.The satellite floated around the earth,blaring(高声播放) the song Dong Fang Hong,which has the same name as the satellite.

     As a forerunner leading the development of China's aerospace science and technology,Qian Xuesen

also provided chances for young scientists. Wang Yongzhi,former chief designer of China's mannedspace

project,has benefited a lot from Qian Xuesen. "He suggested that rocket of the second generation should

be developed by our second generation scientists. This suggestion gave us chances to be general

designers." Recalling the experience working with Qian Xuesen,Sun Jiadong,general designer of China's

lunar orbiter project,is very grateful. "He put great expectation on us and trusted us a lot. Whenever we

made mistakes,he seldom blamed us,but helped us to find out the reason so we could avoid it in the

future."

     Honored as Father of China's Missile and King of Rockets,Qian Xuesen never stopped his work on

scientific research after he retired. He said he had no time to review the past,but looked forward to the

future.

1. When did Qian xuesen begin to study in Massachusetts Institute of Technology?

A. In 1955.  

B. In 1935.  

C. In 1936.  

D. In 1934.

2. Which of the following is about the five countries that launched manmade satellite independently before 1970?

A. The former Union of Soviet Socialist Republics,the UK,France,China and Japan.

B. The former Union of Soviet Socialist Republics,the USA,Japan,Canada and China.

C. America,France,Japan,China and Australia.

D. The former Union of Soviet Socialist Republics,America,France,Japan and China.

3. What does the underlined word "forerunner"(Paragraph 6) probably mean?

A. A leader.  

B. A pioneer.

C. A competitor.  

D. A successful scientist.

4. According to the passage,which of the following about Qian Xuesen is NOT true?

A. In 1956,he made good preparations for the Fifth Research Institute of State Ministry of Defense.

B. He made outstanding contributions to the establishment and development of Chinese aerospace

undertaking.

C. He returned to China,bringing China the hope of developing space science and its own missiles.

D. He devoted all his life to China's space science.

5. It can be inferred from Paragraph 6 that ________.

A. Qian Xuesen is very concerned about the development of young scientists.

B. The help of Qian Xuesen is beneficial to young scientists.

C. Qian Xuesen gives many opportunities to general designers.

D. When the chief designers do something wrong,Qian Xuesen helps them find out the cause.

背书

约翰•弥尔顿在《为英国人民申辩》一书中写道：“如果暴君势力压倒人民的地方可以说是上帝把人民送去奴役，那么在人民势力压倒暴君的地方，为什么就不能说上帝使人们获得了自由呢？如果昏君的暴政是从上帝那里来的，那么我们的自由为什么就不能说也是从上帝那里得来的？”弥尔顿的上述言论（）

A.阐释以自由为武器反抗暴政的合法性

B.确立君主立宪制建立的必然性

C.肯定“君权神授”的合理性

D.宣传基督教神权存在的必要性

转相（）

A.乳剂放置后出现分散相粒子上浮或下沉的现象

B.乳剂中分散相的乳滴发生可逆的聚集现象

C.乳剂由于某些条件的变化而改变乳剂的类型

D.乳剂由于微生物等的作用导致乳剂的变化

E.乳剂乳化膜破坏导致乳滴变大的现象