单选题:Why do policymakers of alcohol control place density restri

  • 题目分类:英语四级
  • 题目类型:单选题
  • 号外号外:注册会员即送体验阅读点!
题目内容:
Why do policymakers of alcohol control place density restrictions? A.Few people are able to resist alcohol's temptations.
B.There are already too many stores selling alcohol.
C.Drinking strong alcohol can cause social problems.
D.Easy access leads to customers' over-consumption.

参考答案:【答案仅供学习,请勿对照自行用药等】
答案解析:

How many acres of environmentally important land in the area

How many acres of environmentally important land in the area for the Conservancy

查看答案

苷元-O-(D-葡萄糖)y为

苷元-O-(D-葡萄糖)y为A.I型强心苷 B.II型强心苷 C.III型强心苷 D.次级强心苷 E.强心苷元

查看答案

可用于提取贵重挥发油

可用于提取贵重挥发油A.蒸馏法 B.溶剂提取法 C.吸收法 D.压榨法 E.二氧化碳超临界流体提取法

查看答案

具有酚羟基可溶于氢氧化钠等强碱性溶液的生物碱是

具有酚羟基可溶于氢氧化钠等强碱性溶液的生物碱是A.长春新碱 B.吗啡 C.氧化苦参碱 D.烟碱 E.秋水仙碱

查看答案

阳离子交换树脂柱色谱的分离原理为

阳离子交换树脂柱色谱的分离原理为A.氢键吸附原理 B.分子筛原理 C.分子筛和吸附原理 D.反相分配色谱原理 E.离子交换原理

查看答案