①度升高
②水分增加
③气含量增加
④气含量减少
⑤二氧化碳含量增加
A:①②④
B:③④⑤
C:①②⑤
D:②③⑤
选出所给句子的答句,将其字母代号填在括号内。
①Is this your jacket?____ A. I'm ill.
②What's the time?____ B. All right.
③Shall we copy it now?____ C. No, it isn't.
④What's the matter?____ D. Four thirty
⑤My pencil is too short.____ E. You can have this long one.