问题补充:
In his book,he explains both it means to be a scientist and science works.
A. how; how
B. what; that
C. what; how
D. how; that
答案:
A. how; how
B. what; that
(答案→)C. what; how
D. how; that
解析:考查名词性从句。句意:在他的书里,他即解释了科学家的意义又说明了科学是如何的运作的。前空为意味作----,what的含义;后空work为不及物动词,故用how.
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