A．only when
B．soon after
C．even if
D．as if

单项选择题（1）更多阳光照射地球 （2）环境污染 （3）臭氧层遭破坏 （4）地球温度升高 （5）地平面上升A．3—2—1—5—4 B．2—3—1—4—5 C．1—2—3--4—5 D．2—4—5—3—1

多项选择题我国世界自然遗产“三江并流”中的“三江”是指（）．

A．岷江
B．怒江
C．雅鲁藏布江
D．澜沧江
E．金沙江

未分类题A．care withB．care forC．care ofD．care about

未分类题下列国家中，忌讳数字“13”的有( )．A．日本 B．韩国 C．菲律宾 D．德国 E．英国

未分类题How did Wrights career begin?A．He was hired as a draftsman in his family project.B．He managed his family property in Wisconsin.C．He built a small house in his hometown.D．He worked as a builder in his hometown.