XYGWD-4-39 实在找不到与GWD对应的题目。

XYGWD-4-39

实在是找不到与GWD对应的题目，不得已发新贴，，，版主原谅。。

Q39:

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.

1. satellites that is a part of 15 years effort of subjecting the interactions of Earth’s atmosphere, oceans, and land surfaces

2. satellites, which is a part of a 15-year effort to subject how Earth’s atmosphere, oceans, and land surfaces interact

3. satellites, part of 15 years effort of subjecting how Earth’s atmosphere, oceans, and land surfaces are interacting

4. satellites that are part of an effort for 15 years that has subjected the interactions of Earth’s atmosphere, oceans, and land surfaces

5. satellites that are part of a 15-year effort to subject the interactions of Earth’s atmosphere, ocean, and land surfaces
                   

我选择E.

理由是A,B用了is,与复数名词satellites不一致.

C选项逗号后面的部分,看起来有点怪,哪位NN能帮我解释一下....

D   AN EFFORT FOR   我觉得不符合使用习惯.

是这样吗?

谢谢..

UP~

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