The discovery was made_______, which we hadn’t expected .A.on purposeB.at presentC.in advanceD.by ac

题目简介

The discovery was made_______, which we hadn’t expected .A.on purposeB.at presentC.in advanceD.by ac

题目详情

The discovery was made_______, which we hadn’t expected .
A.on purposeB.at presentC.in advanceD.by accident
题型:单选题难度:中档来源:不详

答案

D
on purpose故意的;at present现在的,目前的;in advance提前;by accident偶然的。根据which we hadn’t expected,我们没想到会有这个发现,所以应是偶然发现的。选D。

更多内容推荐