近日，全国人大对香港特区基本法第104条作出解释，明确香港立法议员在宣誓时，若故意宣读与法定誓言不一致的誓言或者以任何不真诚、不庄重的方式宣誓，即丧失就任该条所列相应公职的资格。全国人大对香港基本法的释法内容说明了（    ）

①依法治国是我国的治国基本方略     ②一国两制是我国的基本政治制度

③全国人民代表大会拥有立法权        ④我国坚决打击“港独”等分裂势力

    Do you have any foreign friends? Do you know their characteristics（特征）?

    The Germans are very quiet and they always keep calm. They don't like to speak more words. They look very serious. They like different kinds of amusements（娱乐）. The Germans are very hard－working. They like tidiness, especially the women, who always keep their home clean.

    In some ways, the Englishmen look the same as the Germans. They are very quiet and never talk too much with the strangers. They are really polite, so we often hear they say “Thank you.” Or “Sorry.” The gentlemen are also the Englishmen.

    The French's holidays are very long. They like traveling and usually spend their long time staying in other countries. The Frenchmen are more outgoing than the Germans. It is very easy to make friends with them.

    Compared to the Frenchmen, the Americans are more outgoing. And they are even opener than all of the Europeans（欧洲人）. They don't like to depend on others. So it is very common that the students do part-time jobs in their free time. And in Americans' eyes, success is an important part in their life.

①木炭在空气中燃烧；②木炭可以燃烧；③木炭在氧气中燃烧，发出白光放出热量；④水受热变成水蒸汽；⑤木炭是灰黑色固体．属于物理性质的是____；属于化学变化的是____；属于化学现象的是____．