安徽的下列城市与其主要工业部门的搭配错误的是()
A.淮南——煤炭工业
B.马鞍山——钢铁工业
C.铜陵——铜冶炼工业
D.芜湖——石油化学工业
参考答案:D
The problem ___ we should put off the sports meet ___ at the meeting yesterday.
A.whether, came up
B.if, came up
C.that, mentioned
D.if, was refered to
如图所示,向盛有水的小试管中分别加入一定量的下列物质,U型管两端的液面左高右低,,则加入的物质是( )
A.生石灰
B.活性炭
C.苛性钠
D.硝酸铵