2015年11月7日下午3点，海峡两岸领导人***与马英九在新加坡香格里拉酒店会面，这是1949年以来两岸领导人首次直接会面，这表达了两岸领导人（　　）

现实生活中，氨气多用作致冷剂及农用化肥，其实它还是一种清洁能源，在纯氧中可以完全燃烧，只生成水和氮气。最近，科学家用一种含钼的化合物作催化剂，在常温下就能完成氨的合成，从而大大降低了生产成本，使得液氨有望取代液氢成为新一代绿色能源。

（1）N₂+3H₂ 2NH₃ 该反应属于基本反应类型中的                       反应。

（2）请你根据下表信息分析用NH₃取代H₂的优点：

①由于NH₃比H₂沸点高，所以更易                                  ，便于储存和运输。

② NH₃泄漏时易发现是因为                              ，同时它易溶于水，便于处理。

缩句

①五彩缤纷的焰火在夜空中构成了一幅美妙无比的图案。

②在农民们的辛勤劳动下，今年小麦的长势十分喜人。

③生态保护区生长着上千株枝叶茂盛的银杉树。

根据短文理解，从A、B、C、D四个选项中选择最佳答案填空。

    After Columbus discovered the New Continent(新大陆) and 1 back to his motherland, Spain, he was warmly 2. But not everyone felt  3 at Columbus' Success. Some people thought Columbus was only a 4 and what he had done could be done by any other seaman. One day, at a dinner, some self-important men did what they could to 5 Columbus unhappy, saying that he had only done the 6 thing in the world. Hearing this instead of jumping up angrily, Columbus took an 7 from a dish and asked,“Look, here, gentlemen, is there anyone here who can make this egg stand upright?” They tried one by one but none could. Then the egg 8  back to Columbus. He broke it a little, put the egg on the table and it stood upright. “What can be easier than this, gentlemen?” he said, “Now you will say it's so 9 that everybody can do it. Of course, because I have shown you now.” They looked at each other and talked 10.