(While) experts in basic science are important, (skilled talents) should be the (overriding) majority since they are (at heavy d

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问题 (While) experts in basic science are important, (skilled talents) should be the (overriding) majority since they are (at heavy demand) in the market.

选项 A、While
B、skilled talents
C、overriding
D、at heavy demand

答案D

解析 改为in heavy demand  习惯上用(be)in demand,而不是at demand来表示“需要”。
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