如图所示,入射光线与平面镜的夹角为30°,请画出它的反射光线. 发布时间:2017-05-14 16:47 │ 来源:www.tikuol.com 题型:问答题 问题: 如图所示,入射光线与平面镜的夹角为30°,请画出它的反射光线.
题型:问答题 —Please say something about Zheng He. —Oh! He is the Ming dynasty explorer of ______ all the Chinese are proud.A.whoB.whomC.whoseD.that 查看答案