A：Jane，I called you just now, but you didn't pick up．____?

B：I was reading a story called the fox and the crow(《狐狸和乌鸦》)．

A：____?

B：Oh ,it's very educational．

A：____?

B：Of course．One day, the crow got a piece of meat．The fox was very hungry and wanted to eat the meat．Then the fox said hello to the crow．But the crow didn't answer．

A：____ ?

B：Then the fox said the crow had a beautiful voice and asked the crow to sing a song．The crow was very proud(得意的)and wanted to sing．When it opened its mouth，the meat dropped and the fox got it．

A：The crow was really silly．

B：____．The fox wasn't telling the truth．The crow had a terrible singing voice．

阅读短文，回答问题：

如图所示是无锡创业科技园道路两边安装的一种“风光互补路灯”，它头顶小风扇，肩扛太阳能电池板，风扇在风中不停的转动，俨然一道亮丽的风景。它不需要挖路面埋管铺设输电线路，无风有光时，通过太阳能电池板发电，有风无光时通过风力发电机发电，二者皆备时同时发电，并可日夜为蓄电池充电。以一杆传统的路灯和该新颖路灯对比，“风光互补路灯”1年大约可以节省电能3.6×10⁹J，减少碳粉尘排放300kg。

请回答下列问题：

成人的基本标志是指（  ）

进入历史新时期后，____以伟大政治家、战略家的远见卓识，针对____问题提出了“一国两制”的科学构想。“一国两制”的科学构想，是指在____的前提下，我国国家的主体部分坚持____，香港、澳门和台湾是中国不可分割的一部分，作为特别行政区仍然保持____。