21. One kind of tools which are in common use for daily maintenance works on the ship is
designed primarily for gripping objects by using leverage. Many types of the tool include jaws for
cutting. The tools are sometimes required with different jaw configurations to grip, turn, pull, or
crimp a variety of objects. What tool is above description?
(A) Pliers
(B) Hammer
(C) Screwdriver
(D) Drill
阿摩線上測驗
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