Scientists have to work hard to keep ________ with modern discoveries and developments.

A. company B. track C. pace D. touch

 

C

【解析】

試題分析：考查名詞辨析。 keep pace with跟上，Keep in touch with與......保持聯(lián)系；， Keep track of通曉事態(tài)，keep company陪伴，句意：科學(xué)家不得不努力跟上現(xiàn)代科學(xué)的發(fā)展，根據(jù)語(yǔ)境選C項(xiàng)。

考點(diǎn)：考查名詞辨析

 

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