单项选择题
1、 建设中国特色社会主义必须依靠的力量是
A．工人、农民和私营企业业主
B．工人、农民和个体劳动者
C．工人、农民和知识分子
D．工人、知识分子和个体劳动者。

2、设幂级数在x=2处收敛，则该级数在x=-1处必定(    )．
A．发散    
B．条件收敛    
C．收敛
D．敛散性不能确定


3、  
A．2dx+3y²dy 
B．2xdx+6ydy    
C．2dx+ 6ydy
D．2xdx+3y²dy

4、 设y=e-2x，则y′=等于(    )．
A．    
B．  
C．
D．


5、 The differences between Chinese and western society can ________ misunderstandings.
A．course
B．causes
C．create
D．rise.


6、根据下面内容，回答题：
A group of scientists rowing toward the center of a lake saw something shocking. They turned back as fast as they could. What had they seen? The lake was boiling!
The group was investigating a crater lake in the mountains of St. Vincent. A crater lake is the mouth of a volcano that has been dormant for some time and has filled with water.
This particular crater was the tip of a volcano called Soufriere, which erupted last in 1902. Since that time, it had not shown any signs of action. But in the fall of 1971, mountain climbers who had hiked near the lake returned to the lowlands with strange stories. They said the water had turned yellow and was giving off a smell like burnt eggs. A seething fog was rising from the lake's surface.
Local scientists rushed to Soufriere to see if this might be the beginning of a new volcanic explosion. They found a huge black mass in the middle of the water. It was a great blob 1,000 feet long and 300 feet wide. Lava had pushed up through the bottom of the lake and formed a new island.
The investigators wanted to make sure that the volcano was safe, and that the lava would not overflow into the surrounding countryside, But they could never reach the island to study it, because the lava was so hot that the water around it bubbled and boiled.

This passage is about________.
A．mountain climbing
B．a boiling lake
C．a new volcanic island
D．a mysterious blob


简答题
7、简述高斯竞争排除原理及其推论。


8、


9、  


10、 将函数f(x)=xe3x展开为x的幂级数，并指出其收敛区间．

责编：cll  评论 纠错