A:氮气
B:二氧化硫
C:固体粉尘
D:工业废水
香港和澳门都发达的经济部门是( )
⑴May I take your picture?____ A. No, I hurt my arm.
⑵Are you okay?____ B. Yes, he is.
⑶Don't draw or write on the wall.____ C. I'm walking to the hotel.
⑷Is Danny busy?____ D. Sure!
⑸What are you doing?____ E. OK, I'm sorry.