降低护理成本最为经济的途径是()
A.物力成本控制
B.人力成本控制
C.实行零缺陷管理
D.零投诉
E.精简人员
参考答案:C
He tells me not only his parents but also he ______America.
A.has been to
B.have been to
C.have gone to
D.has gone to
气胸时叩诊呈 ( )
A.清音B.过清音C.鼓音D.浊音E.实音