A:虹膜和角膜
B:角膜和虹膜
C:巩膜和虹膜
D:视网膜和虹膜
将下列陈述句改成反问句
①他回去了。
②你吃饭了。
东台市地形属于: ( )
从产业结构上看,我国高技术产业发展格局呈现出的趋势是 ( )
It is ______for him to get to school on time, because it is raining ______.