******在2015年亚洲博鳌论坛中强调：中国近代以后遭遇了100多年的动荡和战火，中国人民绝不会将自己曾经遭受过的悲惨经历强加给其他国家和民族。这（    ）

①昭示了中国维护世界和平、促进共同发展的坚定决心    ②符合我国独立自主的和平外交政策

③符合和平与发展的时代主题                                                ④显示出中国比任何国家都深知和平的重要性

以下哪种活动有利于保护生物圈（　　）

下列化学符号所表示的意义错误的是（　　）

Zhao Yan: Look at this photo, Wang Ying.

Wang Ying: Oh, I remember. It was Liu Ning, you and I that were at the gym. It was rainy that day. We went to the gym to watch Lin Dan play badminton. He played with a player of Australia. We yelled for Lin Dan. He played very hard. Finally he won. We were happy. We jumped up and down.

⑴Zhao Yan, Liu Ning and Wang Ying ____      A. happy.

⑵They watched ____                          B. won.

⑶Lin Dan played with ____                    C. were at the gym.

⑷Lin Dan ____                                D. a player of Australia.

⑸We were ____                               E. a badminton game.