搜题请搜索小程序“爱下问搜题”
问题 单项选择题

可兴奋细胞的共同指标是（）。

A.静息电位

B.动作电位

C.最大复极电位

D.阈电位

E.兴奋性突触后电位

答案

参考答案：B

解析：可兴奋细胞的共同指标是动作电位。

补全对话，情景问答
根据情景,从方框中选择适当的句子补全对话。

A: What about going to the movies?
B: That sounds good.
C: Yes. I'd love to.
D: It's raining.
E: It is sunny today.
F: What about watching TV at home?

A: Sam, I want to go out to play basketball. Would you like to go with me?
B: 1._____. Just wait for one minute.
A: What's the matter? 
B: 2._____. How can we play basketball in the rain?
A: Right. 3._____?
B: Going to the movies? But we still need to go out.
A: Then 4._____?
B: I think the TV show is so boring. Let's cook a nice meal at home. There is a lot of food in the fridge (冰箱).
A: 5._____! Let's begin.

查看答案
单项选择题

税务登记要求在领到营业执照后（）天内办理。

A、20

B、30

C、40

D、10
查看答案