将一物体放在凸透镜前,在距离凸透镜26cm的光屏上得到放大的像,则该凸透镜的焦距 发布时间:2017-05-27 15:52 │ 来源:www.tikuol.com 题型:选择题 问题: 将一物体放在凸透镜前,在距离凸透镜26cm的光屏上得到放大的像,则该凸透镜的焦距可能是( )A.10cmB.20cmC.30cmD.40cm
题型:选择题 — Could you please tell me _____? — Sure. It's very easy. [ ]A. where can I buy this kind of camera B. who bought the camera C. if there is a camera shop over there D. how I can use the new camera 查看答案