题目

       Dr David Weeks has spent years studying these so-called “Superyoung” people. Now the reporter(R) is interviewing Dr Weeks(DW).       R: Dr Weeks, could you start by telling us exactly what you mean by the expression “Superyoung”?       DW: Yes, well, I mean a lucky group of people who actually look and feel as much as 18 years younger than they really are.       R: Is looking younger than our age just a question of our genes?       DW: Well, of course it’s one of the important things. But we have many other things to think about. My study has show如图所示：甲图中①②表示目镜，③④表示物镜，⑤⑥表示物镜与载玻片之间的距离，乙和丙分别表示不同物镜下观察到的图象．下面描述正确的是（ ）A．观察物镜丙时应选用甲中①④⑥组合B．从图中的乙转为丙，正确调节顺序：转动转换器→调节光圈→移动标本→转动细准焦螺旋C．若丙是由乙放大10倍后的物像，则细胞的面积增大为原来的10倍D．若丙图观察到的细胞是位于乙图右上方的细胞，从图中的乙转为丙时，应向右上方移动装片