问题10　单选（1分）Furthermore, as （）(observe) in several studies, the features of the heat transfer affect the frost structure._精华吧

问题10　单选（1分）Furthermore, as （）(observe) in several studies, the features of the heat transfer affect the frost structure.

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问题10　单选（1分）Furthermore, as （）(observe) in several studies, the features of the heat transfer affect the frost structure.

A.observe

B.observed

C.observing

D.been observed

正确答案：observed

Tag：研究生英语科技论文写作时间：2022-01-04 15:57:52

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