og 16 第23题 Discussion of greenhouse has usually focus on whether Earth would grow warmer and to what extent, but climatologists have indicated all along that precipitation,......
求教大神们这句话中的and前后的句子为什么是平行呢?那如何判断选项是错误还是只是省略了一些东西而其实是正确的呢?
还有另外一题og 16 第35题 Traffic safety officials predict that drivers will be as likely to exceed the proposed speed limit as they are the current one.