下列不属于我国著名“四大家鱼”的中（   ）

将下列句子与相应的答语匹配。
⑴Can I go outside？____                                     A. It's sunny.
⑵Is it cold now?____                                            B. Yes，you can.
⑶What time is it?____                                         C. Yes，it is.
⑷Where are you?____                                         D. It's 10：00 a．m.
⑸What's the weather like in New York?____      E. I'm in Beijing.

学生们都正期待着放寒假。

Students are ____ ____ ____ having the winter holiday.

如图，点C是线段AB上一点，D是线段CB的中点，已知图中所有的线段的长度之和为23，线段AC的长度与线段CB的长度都是正整数，则线段AC长____．

关于声音的说法，正确的是（   ）