题目

如图所示，下列透镜中哪些是凸透镜（ ）A. 1、2、3B. 4、5、6C. 1、3、5D. 2、4、6 答案：【答案】C【解析】1、3、5是凸透镜，2、4、6是凹透镜。答案选C。—Are you going to offer some masks and alcohol wet wipes (酒精湿巾) to the people in the village?—________ They are in great need of these things.A.What a shame!B.Why not?C.Why me?D.What's wrong?