The Blacks are English . Now they are in Beijing . This is their first visit to China.
   They are going to stay in China for three weeks . They want to learn some Chinese ,too.
   He likes driving in Beijing very much .Mrs Blacks is a teacher .She often visits a middle school in Beijing ,and she likes to speak with students.
They take a lot of photos in China .When they are back to English ,They’re going to show the photos to their friends. They want the English People to know more about China.

某生物小组在探究生物皮肤的呼吸时，做了如下实验：在A，B两个玻璃瓶里面铺上潮湿的棉花，将两只大小、健康状况基本相同的青蛙分别放入两个瓶中观察，然后将A瓶中的青蛙体表涂上凡士林（一种无害的膏状物）再放回A瓶中，观察A，B瓶中的青蛙的生存状态．

读亚洲略图（图2），完成小题。