据报道，近年来发现了一种新的星际分子，其分子模型如下图所示（图中球与球之间的连线表示化学键，如单键、双键或叁键等，颜色相同的球表示同一种原子）．下列对该星际分子的说法中正确的是（   ）

阅读下面的诗词，回答问题。

陇西行

唐陈  陶

誓扫匈奴不顾身，五千貂锦①丧胡尘。可怜无定河②边骨，犹是春闺梦里人。

破阵子    为陈同甫赋壮词以寄之

南宋辛弃疾

醉里挑灯看剑，梦回吹角连营。八百里分麾下炙，五十弦翻塞外声。沙场秋点兵。

马作的卢飞快，弓如霹雳弦惊。了却君王天下事，赢得生前身后名。可怜白发生！

【注】①貂锦：装备精良的精锐之师。这里指战士。②无定河：在陕西北部。

《陇西行》和《破阵子》中都有“可怜”一词，其中表达的情感有何不同？结合内容简要分析。

      Computers can help many workers. They can also help thieves.
      There was one thief who worked in a bank of the United States. He paid for everything he needed by check (支票). Then he told the computer not to take any money from his account for the checks he wrote. The bank's computer did what he said. And it did not take any money from his bank account. One day the computer broke down. People had to do the computer's work. They soon found out what was happening.
      Another thief, who worked for a bank saw people filling in deposit forms (存款单). Many of these people did not know their account numbers, so they wrote only their names on the forms. They left empty places for their account numbers. The thief wrote his own account number in this place. When the computer read these forms it looked only at the account numbers. It did not look at the customers' names. It paid the money on these deposit forms into the thief's account .                           
       Then there was the bank worker who told the bank computer to take ten cents off every customer's account each month and put it into his own account. For a long time the bank's customers did not notice that they were losing ten cents every month. But then someone did notice and told the bank. That was the end of that little game!

哺乳动物受精过程中，精子释放的酶是 （   ） 

以下历史人物与历史事件搭配正确的是（    ）

①周恩来—领导南昌起义    ②李大钊—建立北京共产党早期组织

③胡 适—创办《新青年》   ④凯末尔—领导三次非暴力不合作运动