A:CH2=CH2
B:CH2=CHCH2CH3
C:CH3CH=CHCH3
D:CH3CH2OH
下列全是绿色开花植物生殖器官的一组是( )
①Do you like the red hat? ____ A. He is under the tree.
②Where's the old man? ____ B. No, they aren't.
③How is the lion? ____ C. No, I don't.
④Are they tigers? ____ D. Yes, it is.
⑤Is this a kite?____ E. It is very strong.
下面是一份对200名初中生课外阅读情况的调查表,请根据这个调查情况,回答后面的问题。