研究者对某池塘中部分生物摄取的食物成分进行分析，并将结果记录在下表中。请回答问题：

有一位老人，在进入一家商店时，走在前面的年轻女士推开沉重的大门，一直等到他进去后才松手。老人向她道谢，女士说：“我父亲和您的年纪差不多，我只是希望他在这种时候，也有人为他开门。”这主要是（    ）

①这位女士在宽容地对待一位老人                             ②一种换位思考、与人为善的具体表现

③体现了“己欲立而立人，己欲达而达人”的境界      ④中国人照顾老人的传统美德

A : What's your favourite invention?

B : Of course computers. They are very important in people's life now.       

A: I like computers, too. I think they will be used even more widely in the future.

B: I agree with you.        

A: I usually use my computer for looking up information reading books and playing games;

B: Do you like shopping online?

A : Yes, of course.       

B: That's true. However, sometimes it isn't safe to buy things online.

A: Yes, so we should be careful when shopping online. What do you like to do with your computer?

B:        

A: You must have many net friends.

B: Sure. I have about 10 friends who are from different countries.

A:        

坚____不____   视____如____   聚____会____    千____一____

不____不____   满____横____   一____而____    ____冲冲