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问题 单项选择题

哪类灭火器不适用于水溶性B类火灾（）。

A.二氧化碳

B.化学泡沫

C.卤代烃

D.磷酸铵盐干粉灭火器

答案

参考答案：B

单项选择题

就雷暴雨天气而言从其对船舶安全航行的危害程度来看，一般在（）区域危害最大。

A、平原河流

B、山区河流

C、海洋

D、水库
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补全对话，情景问答
根据情景，从方框中选出正确的选项，其中一项多余。
A. Go along this street, then turn left at the second turning.
B. Which bus do I need?
C. Can I take a bus?
D. You're welcome.
E. But where's the bus stop?
F. But where's the park?
A:Excuse me. Where's the Linghu Park?
B:    1    
A: How far is it from here?
B: It's about thirty minutes on foot.
A:    2       
B: Yes.
A:    3     
B: The No.8 bus.
A:    4     
B: It's on the other side of the street.
A: Thank you very much.
B:    5     
1. _____  2. _____  3. _____  4. _____  5. _____
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