颁发“南森护照”的目的是（）
A.使难民具有旅行证件
B.使难民改变国籍
C.使无国籍人取得国籍
D.支持各国难民事务部门的工作
参考答案：A
— What do you think of our city?
— I think it's becoming ______. [ ]
A. more beautiful and more beautiful
B. most and most beautiful
C. more and more beautiful
D. the most beautifully
城市区域环境噪声标准属于环境质量标准。（）
