身体依赖性亦称
A.精神依赖性
B.药物依赖性
C.生理依赖性
D.机体依赖性
E.中枢依赖性
参考答案:C
New medicines and instruments ______ every day to extend life.
A.develop
B.are being developed
C.are developing
D.have developed
非油业务是为客户提供燃油、燃气以外的()和().