A spanner is a ______.A.cross connection line between two main fire linesB.special wrench for the couplings in a fire hose lineC.tackle rigged to support a fire hoseD.None of the above
A spanner is a ______.
A.cross connection line between two main fire lines
B.special wrench for the couplings in a fire hose line
C.tackle rigged to support a fire hose
D.None of the above
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