这里的主语是number,不是doctors,整体单数概念,所以要用has.
doctors在这里是作定语.
the number of doctors in our country has greatly increased since liberation.这里为什么用has
the number of doctors in our country has greatly increased since liberation.这里为什么用has
而不是have
而不是have
其他人气：703 ℃时间：2020-04-06 08:39:46
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