什么是湿法冶金?
参考答案:
是指在常温常压或高温高压下,用溶剂处理矿石或精矿,使所要提取的金属溶解于溶液中,而其它杂质不溶解,然后再从溶液中将金属提取和分离出来的过程。
–I hope to go to Beijing with you, if you please.
–If so, your holiday arrangement must ______ mine.
A.catch up with
B.put up with
C.fit in with
D.keep up with
金属化合物