为避免降水稀释，于雨前将池内卤水撤下，集中深存于保卤设备中的作业称为（）。
A.走水
B.制卤
C.纳潮
D.保卤
参考答案：D
在数轴上表示-12的点与表示-3的点之间的距离是______．
------ Chen Lin, who teaches English?
------ Mrs. White. She has lived in China for years. Chinese is very good.
A．your; Her
B．you; Her
C．your; Hers
D．you; Hers
