Scientists are still________ a cure to cancer．

[　　]

A．searching of

B．searching

C．searching for

D．in search

答案：C
解析：

search for sth．意為“搜尋，找尋”；search…for意為“在……找尋”；in search of表示“找尋”，是介詞短語．


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Together with J. David Robertson, chemistry professor and associate director of the MU Research Reactor, Kwon is working to build and test the battery. In the future, they hope to increase the battery’s power, shrink its size and try with various other materials. Kwon said that battery could be thinner than the thickness of human hair.

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