生物进化是____ 的结果。例如，青霉素是一种抗生素，几十年来，由于反复使用致使某些细菌对青霉素的抗药性越来越强。

请结合此实验完成下列问题：

①如图所示的实验现象能够说明____的成像特点．（选填选项前的字母）

A、照相机B、幻灯机C、放大镜D、潜望镜

②保持透镜在50cm刻度线处不动，将点燃的蜡烛放在光具座上28cm刻度线处，为了在光屏上得到清晰的像，应进行的操作及光屏上像的大小变化情况是____．（选填选项前的字母）

A、光屏左移，像变小B、光屏右移，像变小

C、光屏左移，像变大D、光屏右移，像变大

③保持如图蜡烛和凸透镜位置不动，把小安同学的眼镜取下来放在凸透镜的左侧，将光屏移到77cm处光屏上重新得到清晰地像．小芳同学是____（选填“近”或“远”）视眼．

    Most English people have three names: a first name, a middle name and a family name. For example, my full name is Ann Allan Green. Green is my family name. Ann and Allan are my given names. People don't use their middle names very much.So we can say Ann Green. We can say Miss Green or Mrs. Green. But we can't say Miss Ann or Mrs. Ann. It's different from Chinese names. In China, the first name is the family name and the last name is the given name.