可以用于痛经及分娩止痛的药物是( )
A.延胡索乙素B.纳洛酮C.强痛定D.喷他佐辛E.哌替啶
参考答案:A
When I went into the room, I found it already. [ ]
A. is cleaned
B. was cleaning
C. to clean
D. cleaned
根据《中华人民共和国物权法》,下列物品中,可以适用善意取得制度的是()。
A.黄金
B.枪支
C.房屋
D.麻醉品