如右图所示,a、b、c、d为物镜和目镜,e、f为物镜与标本之间的距离。欲获得最小 发布时间:2017-05-11 22:46 │ 来源:www.tikuol.com 题型:选择题 问题: 如右图所示,a、b、c、d为物镜和目镜,e、f为物镜与标本之间的距离。欲获得最小的放大倍数,其正确的组合是 A.a、d、fB.b、c、fC.b、c、eD.a、d、e
题型:选择题 读问题,再回答。1. Which season do you like best?_________________________________2. When's your birthday?________________________________________3. What time is it?_____________________________________________4. When do you eat breakfast?___________________________________5. What season is it now?_______________________________________ 查看答案