单项选择题
（）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
单项选择题 （）should generally be used when handing rough or sharp objects.
单项选择题 Long hair should always be covered by（）when working with or near moving machinery.
单项选择题 Which of the following equipment is for protection against hypothermia?（）
