溶浸采矿法不能用于开采()。
A.铀矿
B.煤矿
C.铜矿
D.金矿
参考答案:B
根据提示,完成这份广告(首字母已经给出)。
Welcome to our sports Center
Do you like (1)s________? We have many (2)c________. For example: (3)v________ club,
(4)b_______ club, (5)p_______ club, (6)t________ club, (7)f________ club, (8)s________ club
and more. Come and join us soon!
颚式破碎机大修后,空载试车时间一般为()小时