①小瑛观察到的现象是____；

小方观察到的现象是____；

他可以得到的结论是____．

②小方在大烧杯外放一杯酚酞溶液的目是____．

③请你就两位学生的实验进行评价：____．

1995年，被誉为“经济领域的联合国”的国际组织成立，该组织是（　　）

    For hours after their boat sank, Ken Henderson and Coen trod(踏) water in the Gulf of Mexico, talking about life and death while struggling to survive. For more than 30 hours, it worked.

    Then Henderson was forced to make a decision. “I'm going to go for help or you're not going to make it,” Henderson told Coen, just before cutting the strap(带子) that connected them in the deep, cold waters. “I understand,”Coen responded, giving Henderson a last set of instructions, “Kiss my babies for me.”

    Days after the fishing trip ended in tragedy, Henderson told the story for The Associated Press.

    They had been fishing for a few hours when suddenly Coen noticed the boat was filling with water. Henderson got both motors roaring, only to have the saltwater that had leaked in break them straight away…Coen jumped to the right, his sunglasses and cap flying off. The two grabbed extra life jackets and other floating items, including a half full bottle of Diet Coke.

    “The water was so cold and it took your breath away,” Henderson said. They immediately began to tremble.

    The pair prepared for a long wait. And they talked.

“We discussed things and discussed life. We discussed families. We just tried to keep occupied,” Henderson said.

    Eventually Coen started hallucinating(有幻觉). Henderson tried to keep Coen's arms and legs moving. But as morning came, Coen's situation worsened. And so Henderson decided to cut the strap.

    He swam for two hours, tired, frustrated and depressed. Then he saw an oil rig(钻探平台) in the distance. He swam, seeing ice and crystal trees in the water. He reminded himself constantly there were no trees.

    His legs was so weak that he could barely lift them. Henderson slowly pulled himself up the rig's ladder.

    It was over 50 miles from where they had gone in the water.

    All he could think of was Coen. Convinced his friend would survive, he told the coast guard where they had parted.

    Two hours later, a fisherman found a body in a life jacket.

    Later, in the hospital, Henderson saw his friend. He apologized and asked for forgiveness. He promised to realize his wishes and look after his girls.

    “I felt like a part of me had died out there,” Henderson said.

遇到火灾不要慌，请速拨（    ）

    昊麟征，字圣生，海盐人。天启二年进士。徐建昌府推官，擒豪猾，捕剧盗，治声日闻。父忧归，服阕，补兴化府，廉公有成，僚属莫敢以私进。

    崇祯五年，擢吏科给事中。上书言：“安民之本在守令。郡守廉，县令不敢贪；郡守慈，县令不敢虐。宜仿宣宗用况钟故事，精择而礼遣之，重以玺书，假便宜久任。”时不能行。八月，淫雨损山陵，昌平地动。麟征因请罢内遣，言：“黄衣之使，初虽间有摘发，至竞同归模棱。伏愿撤回各使，以明阴不干阳之分，采公论以进退大臣，酌事情以衡量小吏，庶天变可回，时艰可济。”帝以借端渎奏，切责之。

    十七年春，推太常少卿。未几，贼薄京师。麟征奉命守西直门。门当贼冲，贼诈为勤王兵求入。申官欲纳之，麟征不可，以土石坚塞其门，募死士缒城袭击之，多所斩获。贼攻益急，麟征趋入朝。至午门，魏藻德引麟征手曰：“国家如天之福，必无他虞。旦夕兵饷集，公煎遽为？”引之出。明日城陷，作书诀家人曰祖宗二百七十余年宗社一旦至此虽上有亢龙之悔下有鱼烂之殃而身居谏垣无所匡救法当褫服解带自经，家人救之苏，环泣请日：“待祝孝廉至，一诀可乎？”许之。祝孝廉名渊，同试秋闱者也，与麟征善。明日，渊至。麟征慷慨曰：“忆登第时吟文信国《零丁洋诗》，今山河碎矣，不死何为！”酌酒与渊别，遂自经，赠兵部右侍郎，谥忠节。

    方贼之陷山西也，蓟辽总督王永吉请撤宁远吴三桂兵守关门，冀缓急有以可恃。天子下其议，麟征深然之。辅臣陈演、魏藻德不可，谓：“弃地二百里，臣不敢任其咎。”麟征复为议数百言，六科不署名，独疏昌言，弗省。及烽烟彻大内，帝始悔不用麟征言。

（选自《明史列传》卷一百五十四）