品质优良的蜂蜜用水调解后静置一天，没有沉淀物。
参考答案：对
如图，因为MN⊥AB，MO=NO，所以______是______的垂直平分线．
― Why ______ you stay in the countryside, where it is not convenient to go shopping?
―But I’ve found it rather valuable for my health.
A．can
B．must
C．may
D．shall
