问题
单项选择题
Fire hose should be washed with().
A.salt water and a wire brush
B.caustic soap
C.mild soap and fresh water
D.a holystone
答案
参考答案:C
Fire hose should be washed with().
A.salt water and a wire brush
B.caustic soap
C.mild soap and fresh water
D.a holystone
参考答案:C