常见分体式空调器(冷气机),连接室内外机组的两条铜管最正确之名称是()
A.2分管和3分管
B.高压管和低压管
C.液体管和气体管
D.2分管和4分管
参考答案:C
Don't forget the appointment with the principal at the registry office, _____you
A.don't
B.do
C.will
D.shall
接受健康建议阶段的干预手段是()
A.传播
B.指导
C.强化
D.巩固
E.鼓励