- 搜標(biāo)題
- 搜題干
- 搜選項(xiàng)
單項(xiàng)選擇題
洗手時(shí)揉搓雙手不應(yīng)少于（）
A.5s
B.10s
C.15s
D.20s
E.25s
A.5s
B.10s
C.15s
D.20s
E.25s
