请问这“个调查显示”是用“The research revealed that”还是The research has revealed that

问题描述:

请问这“个调查显示”是用“The research revealed that”还是The research has revealed that

两者都可以用,要结合语境的.比如,你是列举别人已做过的调查来论证你所说的,就用The research has revealed that .如果上文你简单陈述了调查,你可以用The research revealed that.