直接与药品接触的包装是
A.输液和粉针B.药品内包装C.药品外包装D.药品说明书E.药品的用法用量
参考答案:B
嵌体覆盖高于面,用于恢复患者咬合关系者称()
A.高嵌体
B.单面嵌体
C.双面嵌体
D.钉嵌体
E.嵌体冠
After the accident a policeman was appointed to ______ the cause of the big fire. [ ]
A. look for
B. look after
C. look into
D. look upon