凸透镜成像中,若物距为2倍焦距,其成的像是()。A.倒立缩小实像 B.倒立等大实像 发布时间:2017-07-10 19:44 │ 来源:www.tikuol.com 题型:单项选择题 问题: 凸透镜成像中,若物距为2倍焦距,其成的像是()。A.倒立缩小实像B.倒立等大实像C.倒立放大实像D.不成像
题型:单项选择题 Be careful when you deal with this chemical, as it will explode when ______ to sunlight.A.exposed B.to exposeC.exposingD.being exposed 查看答案