【单选题】对磷酸可待因描述错误的是( )。
A.
为吗啡的3位甲基衍生物,对延脑的咳嗽中枢有直接抑制作用
B.
在体内的代谢产物有N一去甲可待因、去甲吗啡和氢化可待因
C.
在体内约有8%的可待因代谢后生成吗啡,可产生成瘾性
D.
临床主要用于镇咳,治疗无痰干咳及剧烈、频繁的咳嗽
【简答题】一般电子产品的市场调研内容主要分为:__________、__________、__________。
【单选题】根据下列题干及选项,回答 121~123 题:
E.
盐酸氨溴索 第 121 题 主要用于治疗干咳的是( )。
【判断题】在库存资金占用ABC分类时,通常把那些单价高、资金占用金额大、品种少的物品归为B类。
【简答题】anxious(ly); eager(ly) They are getting very _____ because the world market is getting more and more competitive. I waited ____ outside the emergency room during my mother's operation. Young people ar...
【单选题】Young people prefer to live in big cities, where there are lots of ________, like convenient transportation, more opportunities and better environment. [ ]
【单选题】"-ly" is the __________ of the adverb "undoubtedly".