A:配制0.10mol/L NaOH溶液
B:除去CO中的CO2
C:苯萃取碘水中的I2分出水层后的操作
D:除去粗盐溶液中的不溶物
(____) What does your mother do?
(____) Oh, great!
(____) She's a nurse.
(____) Look! This is my mother.
(____) Oh! She's beautiful.