25. One kind of tools which are in common use for daily maintenance works on the ship is the
one-piece with a U-shaped opening that grips two opposite faces of a bolt or nut. This tool is often
double-ended with different-sized opening at each end. Each end of the tool is often oriented at an
angle of around 15 degrees to the longitudinal axis of the handle. Which tool is above description?
(A) Adjustable spanner
(B) Ring spanner
(C) Open-end spanner
(D) Hammer
阿摩線上測驗
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