氧化铝、氟化铝和氟化钙都能使冰晶石溶液的电导率（），而NaF和NaCl使熔液电导率（）。
参考答案：减低；提高
My sister has two skirts. One is yellow, _____ is black. [ ]
A. other
B. another
C. others
D. the other
多穆壶
