室内消火栓应采用同一型号规格。消火栓的栓口直径应为65mm，水带

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问题单项选择题

室内消火栓应采用同一型号规格。消火栓的栓口直径应为65mm，水带长度不应超过25m，水枪喷嘴口径不应小于（）。

A、16mm

B、17mm

C、18mm

D、19mm

答案

参考答案：D

选择题

Read and choose. 帮中文选择正确的译文。

1．你能找到玩牌的孩子们吗？[ ]

A. Can you find the children play cards?

B. Can you find the children playing cards?

C. Can you find play children?

2．大家都想去买东西。[ ]

A. Everyone wants shop.

B. We want to go shop.

C. Everyone wants to go shopping.

3．我想给我的妹妹买个帽子。[ ]

A. I want to buy a hat to my young sister.

B. I want to buy a hat for my young sister.

C. I want buying a hat to my young sister.

4．我想拍张照片。[ ]

A. I want to take a picture.

B. I want to a picture.

C. I take a picture.

单项选择题

齿轮联轴器一般用在（）上。

A.给水泵；

B.凝结水泵；

C.疏水泵；

D.循环水泵。