（15分）下表是A、B、C、D、E五种有机物的有关信息：

回答下列问题：

（1）A～E中，属于烃的是          （填字母）。

（2）A能使溴的四氯化碳溶液褪色，发生反应的化学方程式为

                                                       。

（3）C催化氧化生成D的化学方程式为

                                                          。

（4）有机物B具有的性质是           （填序号）。

①无色无味的液体；②有毒；③不溶于水；④密度比水大；⑤能使酸性KMnO₄溶液和溴水褪色

（5）E的水溶液能使紫色石蕊试液变红，说明E的水溶液显酸性，现设计

一个实验来比较E与碳酸酸性的强弱，则该实验的原理是（用化学方程式说明）

                                                         。

Kofi Annan says helping survivors of last week’’s earthquake and (1)________in the Indian Ocean is (2)________. The United Nations secretary-general says countries that have offered aid must (3)________and provide it. The offers add up to around (4)________dollars. United Nations officials say (5) ________of that is needed during the next six months.The concern about offers of international aid is (6)________. For example, the earthquake in Bam, Iran, in (7)________of 2003 killed more than (8) ________people. Countries and groups offered hundreds of millions of dollars (9) ________. The United Nations says it has (10)________only about (11)________dollars in aid received so far. Governments and organizations that offered help (12) ________that, however.On (13)________Mr. Annan met with world leaders in Jakarta, Indonesia to discuss aid for (14)________. The leaders discussed and (15)________the idea of (16)________owed by affected nations. But the leaders did not say they would do so. Some said that (17)________to survivors would be more helpful.Representatives of (18)________countries and international organizations attended the meeting in Jakarta. Officials say they will cooperate to develop (19)________ for the Indian Ocean and the (20)________.