單項(xiàng)選擇題

（）should generally best for handing acids,alkalis,various types of oils,solvents and chemicals in general.

A.Heat-resistant gloves
B.Rubber gloves
C.PVC gloves
D.Leather gloves

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單項(xiàng)選擇題

（）should generally be used when handing rough or sharp objects.

A.Heat-resistant
B.Rubber gloves
C.PVC gloves
D.Leather gloves

單項(xiàng)選擇題

Long hair should always be covered by（）when working with or near moving machinery.

A.a helment
B.safety cap
C.an ear plug
D.face mask

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