处方具有法律性、技术性和经济性。处方医师的签章式样必须在医疗机构
A.留样
B.备案
C.登记、备案
D.留样、备案
E.登记、留样、备案
参考答案:E
Lily was busy _______ ready for the exam and was made ______ in her room the
whole afternoon.
A.getting, study
B.get , to study
C.getting, to study
D.to get, study
读沿赤道的地形剖面示意图,回答下列小题。
导致A、B两处景观不同的根本原因是()
A.地形地势
B.海陆位置
C.大气环流
D.经度差异