单项选择题
1、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 hake 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 blab 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 blab


2、当x→0时，3x是x的（　）． 
A．高阶无穷小量
B．等价无穷小量 
C．同阶无穷小量，但不是等价无穷小量
D．低阶无穷小量 


3、 依据我国法律的规定，有权以有禁止结婚的亲属关系为由向人民法院申请宣告婚姻无效的利害关系人为（　　）。
A．当事人
B．基层组织
C．当事人的近亲属
D．计划生育管理机关


4、 根据动机的性质和社会价值不同，动机可划分为（　　）。
A．生理性动机和社会性动机
B．高尚动机和低级动机
C．近景性动机和远景性动机
D．主导动机和从属动机


填空题
5、 设y=arCCOSx，则yˊ__________ ．


6、

7、 以作品的感知方式为依据，可以将艺术分为听觉艺术、_____艺术和_____艺术。


8、

设y=f(x)可导，点xo=2为f(x)的极小值点，且f(2)=3．则曲线y=f(x)在点(2，3)处的切线方程为__________．

简答题
9、已知求

10、 《饮酒》（其五）一诗表现了陶渊明怎样的人生态度和思想情绪？

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