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问题 单项选择题

电瓶作为备份电源，其最低要求是能供电多久（）

A、60分钟

B、40分钟

C、30分钟

D、5分钟

答案

参考答案：C

填空题

人际关系行为规范基本准则：（）、（）、以诚相待、（）、（）、乐于助人。
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补全对话，情景问答
从方框中选择适当的句子补全对话。
A. By bike or by bus.
B. How about you?
C. Nobody, I think.
D. I'm fine, thanks
E. Yes. But my bicycle is broken today.
F. Yes, you're right.
G. Some of them live near our school. So they usually walk.
A: Hi, Lu Youjing! How are you?
B: 1              .
A: Do you usually go to school by bike?
B: 2              .
A: I'm sorry to hear that. How do the most students in your class go to school?
B: 3              .
A: What about the others?
B: 4              .
A: Is there anybody by car?
B: 5              .
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