原矿量对精矿量之比叫做()。
A.选矿比
B.破碎比
C.百分比
参考答案:A
---How many employees are there in the company?
---We have 500 people working there.
A.near
B.more
C.something like
D.or so
电阻并联连接时,所并电阻越多,则其总电阻值越()。
A、大
B、小
C、不变
D、不一定