如图是眼球结构及成像示意图．下列有关叙述正确的是（   ）

补写下列句子中的空缺部分。

①奚惆怅而独悲？____，____。（《归去来兮辞》）

②老当益壮，宁移白首之心？____，____。（《滕王阁序》）

③外无期功强近之亲，____，____，形影相吊。（《陈情表》）

若不等式组 $\left\{\begin{array}{c}x+y-2\le 0\\ x+2y-2\ge 0\\ x-y+2m\ge 0\end{array}\right.$,表示的平面区域为三角形，且其面积等于$\frac{4}{3}$，则m的值为（    ）

当沉浸于对文艺复兴时期的思索之中时，人们能够回想起探索与发现的诸种辉煌成就……看起来仿佛是在每一个方面，人类行动和思维的疆界都变得更为广阔。能反映此观点的是
①哥伦布发现新大陆          ②伏尔泰的《哲学通信》
③莎士比亚的《哈姆雷特》    ④马丁．路德倡导宗教改革

   You may never be in an emergency situation. But if it happens, you should know how to get help. The telephone book in the United States has emergency numbers on the inside front cover. Look at the following table from the Boston telephone book. Notice that the numbers for the police and the fire department (部门) are the same. And it is an easy number to remember. If you are too unhappy or excited to remember any numbers at all, you can simply dial (拨打) “0” for an operator (接线员) in any emergency.