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题库 / OG2017V-SC-251
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.
satellites that is a part of 15 years effort of subjecting the interactions of Earth's atmosphere, oceans, and land surfaces
satellites, which is a part of a 15-year effort to subject how Earth's atmosphere, oceans, and land surfaces interact
satellites, part of 15 years effort of subjecting how Earth's atmosphere, oceans, and land surfaces are interacting
satellites that are part of an effort for 15 years that has subjected the interactions of Earth's atmosphere, oceans, and land surfaces
satellites that are part of a 15-year effort to subject the interactions of Earth's atmosphere, ocean, and land surfaces
纠结于B和E，用时太多。which在这如果指代satellites，后面的is应该是复数，interact应该用名词形式，either interacting or interaction 表间接关系
C选项是run on sentence
选项A里面的that只能指代复数satellites，所以后面要用are，subjecting表示这个effort是间接的，但其实应该用to subject表直接目的
选项D 15 years that那个modifier放错位置了，让years做了that后面的主语，wrong meaning
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