Q29: fficeffice" />

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

管选e 但 ocean后面无s 查了一下ocean可数。

我选b认为 这个定语从句是修饰AM-1的， 但有这个how让我有点疑惑 请教大家。[em22]

我觉得选E，我做题目没注意到ocean的问题，后来看你答案发现了，确实有问题。。。不明白fficeffice" />

B的意思上有些问题，说AM-1是 a part of a 15-year effort to subject 和原来句子意思不一致 固定用法是subject sth to...B用了个名词性从句