Possible long-term consequences of the “greenhouse effect,” the gradual warming of the Earth’s climate, may include melting the polar ice caps and a rising sea level. A. may include melting the polar ice caps and a rising sea level B. may include the melting of polar ice caps and the rising sea level C. may include polar ice caps that are melting and sea levels that are rising D. include melting the polar ice caps and sea levels that are rising E. include melting of the polar ice caps and a rise in sea level 为何选E ,情态动词不是不能省略么 E中的and前后也不对称啊
[此贴子已经被作者于2009/9/25 0:47:02编辑过] |