搜题请搜索小程序“爱下问搜题”
问题 选择题
当你想知道对方的名字时，你应问： _____     

A. What's this?
B. What's your name?
C. How are you?
答案

答案：B

选择题

Guess what! I came across my primary school science teacher this morning, ______ I have lost touch for almost 20 years.

A．of which

B．when

C．with whom

D．who
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单项选择题

消化道平滑肌细胞动作电位产生的主要离子基础是

A．K+外流
B．Na+内流
C．Ca2+内流
D．Cl-内流
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