America’s technological universities and government laboratories are generally______. Which of the following statement is true

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问题 America’s technological universities and government laboratories are generally______.
Which of the following statement is true according to the passage?

选项 A、55% of technical reports published in scientific journals are written by scientists doing their research in America.
B、35% of all scientific journals are issued by American scientific societies.
C、35% of all scientists come from America.
D、35% of all scientists are doing research at American institutions.

答案A

解析 文章中的35% of them中的them指代的是is reflected in the technical reports中的technical reports。因此答案就显而易见了。
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