白云石的理论MgO的含量为()
A、11%
B、16%
C、19%
参考答案:B
They________with each other for many years before they________.
A.had been in love;got married
B.fell in love;got married
C.had fell in love;married
D.love;go married
百佳超市清晨购进950瓶光明牛奶,上午卖出418瓶,下午卖出497瓶,这天购进的光明牛奶售完了吗?