1.5g氯化钾相当于K+（）
A.5mmol
B.10mmol
C.15mmol
D.20mmol
E.25mmol
参考答案：D
Yesterday the teacher told us that the earth ________around the sun.
A．moved
B．moves
C．was moving
D． had moved
如何溶解脱膜粉？
