问题
选择题
世界上最早采用接种人痘的方法来预防天花的国家是 [ ]
A.美国
B.中国
C.日本
D.英国
答案
答案:B
世界上最早采用接种人痘的方法来预防天花的国家是 [ ]
A.美国
B.中国
C.日本
D.英国
答案:B
根据对话情景和内容,从对话后的选项中选出能填入空白处的最佳选项。选项中有两项是多余项。 A: Do you cycle? B:Yes, I do. _______小题1: _____. A: I only recycle glass. B: I recycle everything! _______小题2:______ A: That’s cool. I guess you care about the environment a lot. B:I do. 小题3: ____ A:I don’t know a lot about pollution. B: Well, there are many different kinds of pollution. A: Oh, really? 小题4: __ B: Air pollution and light pollution are two of them. A: ______小题5:______. B: Well, driving less and using clean forms of energy can help prevent pollution.
|