The researchers calculated that the stress-reducing effects of hugging_____ about 32 percent of that beneficial effect.
这一空的答案是 explained,我想请教一下为何不可以选 served 呢?
我查了serve 有“提供;产生…成效”的意思呀。
谢谢解答指教。
The researchers calculated that the stress-reducing effects of hugging_____ about 32 percent of that beneficial effect.
这一空的答案是 explained,我想请教一下为何不可以选 served 呢?
我查了serve 有“提供;产生…成效”的意思呀。
谢谢解答指教。
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