下列物质不可能是通过相应的金属跟稀酸发生置换反应制得的是（ ）

下列东南亚旅游胜地与其所在国组合，正确的是 (    )

How do we know the weather? We learn it on the radio and TV every day. Different countries have different weather. For example, the weather in Australia is different from that in China. Because the seasons in Australia are the opposite. Its summer is from December to February. But in our country, it's winter this time. And its winter is in June, July and August. So when it's spring in China, it's autumn in Australia. Isn't it interesting?

“她虽然没有形成一个统一的国家……但她……在文学、史学、科学、哲学、艺术诸方面都独领风骚，而且还孕育了西方近代文明的一切胚胎。”“她”指的是