搜题请搜索小程序“爱下问搜题”
问题 选择题
when you want to talk to your teacher ,you should _    _first.
A．called to herB．called up her
C．call her upD．called her up
答案

答案：C

补全对话，情景问答

看图选词完成对话。（可重复使用）  

computer  it  isn't  on  camera  May  What  Yes  Thank

    

    A: Is that a _     __?                        A: What's that ___    _ the desk?

    B: _     __, it is.                               B: It's a            .

    A: _    __ I have a look?                 A: Is __  __  your__    _?

    B: Sure.                                          B: No, it _      __.

    B: _    __ you.                                 A: _    __ a nice ___   _!
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单项选择题

消化性溃疡发病因素中，下列各项中最重要的是

A．食物的机械及化学刺激

B．非甾体类抗炎药物

C．胆汁反流

D．胃酸

E．胃蛋白酶
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