阅读理解。

   Today is Friday. It's my birthday. I get up at 6:40. I put on my new yellow shirt and blue jeans. I like my red shoes. I eat some bread and drink milk at 7:00 for breakfast. At 7:25, I go to school. At 10:00, I go to the library. It's on the second floor. I read a story-book there. I go home at 11:30.

制作洋葱鳞片叶表皮细胞临时装片时,染色的正确方法是(   )

2007年3月的《扬子晚报》有过一篇标题为《好个“见钱眼开”电子眼》的报道：一些公路每隔三五百米就安装一台电子眼，许多路段限速过低成为“罚款陷阱”，有些地方电子眼已演变成“创收工具”……如图4，你认为这些“电子眼”是运用到了我们所学过的什么光学原理来反应这一社会现象的（  ）