Wefailedtheexperimentagaintheresul

发布时间：2020-07-11 08:10:43

We failed the experiment again the result really ________













A.let us up












B.let us down











C.let us in











D.let us out

网友回答

B
以上问题属网友观点，不代表本站立场，仅供参考！