题干
I do hope so because I want you to live ________ as I have.
A：as long and healthy a life
B：as a long and healthy life
C：as long and a healthy life
D：so long and healthy a life
答案(点此获取答案解析）
A
, A=
2,4
, B="{3,4}," 则A∪B = （ ）