It is clear that the whole world is passing through a social revolution in which a central _____ must be taken by scientists and technologists.

A. process   B. attention    C. measure    D. part

D


解析:

take part in參加。

本題譯文:顯然,整個世界正經(jīng)歷著一場社會革命;科學(xué)家和技術(shù)人員必定是這場革命地主要參加者。

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