题干
—When did your father stop smoking?
—In 1999, the year I was born.
A：put up
B：think up
C：mix up
D：give up
答案(点此获取答案解析）
D
—When did your father stop smoking?
—In 1999, the year I was born.
A：put up
B：think up
C：mix up
D：give up
下列溶液中微粒的物质的量浓度关系正确的是