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问题 单项选择题

A．-2

B．0

C．2

D．4

答案

参考答案：D

解析：

[分析]： 本题考查的知识点是用洛必达法则求极限的方法以及乘积的导数公式． 因为

所以选D．

完形填空
根据对话内容，从下面方框所给的选项中选出合适的句子补全对话，将其标号在答题卡上涂黑。

When do you usually go swimming ?
But it’s my favourite sport.
C. Do you like playing sports ?
D. What do you think of skiing ?
E. Becaues I think it’s more relaxing than other sports.

 
A: Hello, Ann.  小题1:      

B: Yes, I do. And I like swimming best.
A:   小题2:      
B: On Sundays and during summer holidays.
A:    小题3:       
B: I think it’s more dangerous than swimming.
A:   小题4:   
B: Why do you like it?
A:   小题5:      
B:What other sports do you like?
A: Table tennis and running.
B:Oh, I like running, too. Let’s run .Ok?
A: It sounds like a good idea.
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单项选择题

急性胆囊炎最严重的并发症是：（）

A．胆囊积脓

B．急性化脓性胆管炎

C．胆囊十二指肠内瘘

D．胆囊穿孔、胆汁性腹膜炎
查看答案