企源知识库

When cleaning your hands,remember to ______ all surfaces, including the backs of your hands,wrists,between your fingers,and under your fingernails.
A、sweep
B、scrub
C、purify
D、groom
【正确答案】：B
【题目解析】：清洁双手时，记得要擦洗所有表面，包括手背、手腕、手指间和指甲缝。