问题 单项选择题

The all-purpose nozzle will produce a fog spray when you().

A.pull the nozzle handle all the way back toward the operator

B.pull the nozzle handle back to a position where the handle is perpendicular to the plane of the nozzle

C.push the nozzle handle forward as far as it will go

D.insert a fog applicator between the fire hose and nozzle

答案

参考答案:B

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