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问题 单项选择题

当从听诊器中听到第一声搏动时，袖带内压力()

A．小于心脏收缩压

B．大于心脏收缩压

C．等于心脏收缩压

D．等于心脏舒张压

E．小于心脏舒张压

答案

参考答案：C

选择题

不等式x2＋ax＋4<0的解集不是空集，则实数a的取值范围是(　　)

A．－4≤a≤4

B．－4<a<4

C．a≥4或a≤－4

D．a<－4或a>4
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补全对话，情景问答
根据对话内容，从方框内的选项中选出能填入空白处的选项，有两项多余
A. But I don't like its color.
B. What color do you want?
C. Can I help you?
D. How much is it?
E. I'll buy you a new one.
F. Here is a new one.
G. But I think it's small.

A: Mom, look at my sweater. It's small. And it's old, too.
B: Yes, it is   1   .
A: Thank you. Can I go with you?
B: Come on.
( In the store )
C:  2   
B: Yes, please. I want a sweater for my son.
C:  3   
A: I kike blue.
C: Here is a blue one. Do you like it ?
A: It's nice.   4   
B: I think it's small, too.
C: This one is big, And it's blue.
A: It's nice. I like it.
B:   5   
C: It's 76 yuan.
B: I'll take it. Thank you.
C: You're welcome.
1._______ 2._______ 3._______ 4._______ 5._______
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