Twenty-two feet long and 10 feet in diameter, the AM-1 is one of the many new satellites that is a part of 15 years effort of subjecting the interactions of Earth’s atmosphere, oceans, and land surfaces to detailed scrutiny from space.
A. satellites that is a part of 15 years effort of subjecting the interactions of Earth’s atmosphere, oceans, and land surfaces
B. satellites, which is a part of a 15-year effort to subject how Earth’s atmosphere, oceans, and land surfaces interact
C. satellites, part of 15 years effort of subjecting how Earth’s atmosphere, oceans, and land surfaces are interacting
D. satellites that are part of an effort for 15 years that has subjected the interactions of Earth’s atmosphere, oceans, and land surfaces
E. satellites that are part of a 15-year effort to subject the interactions of Earth’s atmosphere, ocean, and land surfaces
the answer is e
如果把B选项的is改成are，是否就对了？对于大全对B的解释：presenting the object of the verb subject as a phrase beginning with how and ending with the verb interact produces a sentence that seems to be about how various conditions react to detailed scrutiny from space. 我不是很明白~ 作者: taohuaxian 时间: 2010-5-11 06:52
