题目

当物体在凸透镜的两倍焦距以外并向透镜移动时（不超过2倍焦距），像离透镜的距离将____，像的大小将____，且成的像是____像   答案：变大、变大、实解析:略 You might just as well tell the manufacture that male customers _____ not like the design of the furniture.  A.must                B. shall                  C. may                  D. need