题干
The London Olympics made people all over the world there very much．
A：want to go
B：to fly
C：fly
D：to want to go
答案(点此获取答案解析）
A
The London Olympics made people all over the world there very much．
A：want to go
B：to fly
C：fly
D：to want to go
，则此时溶液中
的物质的量为 （ ）