题目内容
(请给出正确答案)
[主观题]
消火栓水枪一般为直流式,喷嘴口径一般为()。
A.13mm,16mm两种
B.16mm,19mm,25mm三种
C.16mm,19mm两种
D.13mm,16mm,19mm三种
答案
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A.13mm,16mm两种
B.16mm,19mm,25mm三种
C.16mm,19mm两种
D.13mm,16mm,19mm三种