【多选题】【消耗次数：1】
The lives of many people have been enriched_________ adult education.
①
because
②
because of
③
due to
④
owing to
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相关题目
【单选题】
The lives of many people have been enriched_________ adult education.
①
because
②
because of
③
as a result
④
so that
【判断题】
答题说明：句子没有语法错误请选择“正确”，有语法错误请选择“错误”The lives of many people have been enriched because adult education.
①
正确
②
错误
【单选题】
[] so many people want to live in cities is because they want to have fun in there.
①
Why
②
That
③
Whether
④
How
【单选题】
Some words are hard to____ because they have too many
different uses.
①
express
②
explain
③
define
④
describe
【单选题】
The postage rate was high in the past, because post offices had to send many people to_________ the postage.
①
cover
②
carry
③
clean
④
collect
【单选题】
Department stores in London are very large. They are called department stores because they have many_________ departments.
①
delicious
②
different
③
domestic
④
delighted
【单选题】
You can take as many as you like because they are free of ____ .?
①
fare ?
②
charge ?
③
money ?
④
pay?
【单选题】
You can take as many as you like because these handouts are free of ____.
①
fare
②
charge
③
money
④
pay
随机题目
【单选题】
药物的亲脂性与生物活性的关系是（）。
①
适度的亲脂性有最佳活性
②
增强亲脂性，使作用时间缩短
③
增强亲脂性，有利于吸收，活性增强
④
降低亲脂性，使作用时间延长
⑤
降低亲脂性，不利于吸收，活性下降
【单选题】
关于药物的解离度对药效的影响，叙述正确的是（）。
①
解离度愈大，活性愈低
②
解离度愈大，活性愈好
③
解离度适当，活性为好
④
解离度愈小，活性愈低
⑤
解离度愈小，活性愈好
【单选题】
药物分子中引入羟基可以（）。
①
影响药物的电荷分布及作用时间
②
增强药物的亲水性，并增加其与受体的结合力
③
明显增加药物的亲脂性，并降低解离度
④
增加药物的水溶性，并增加解离度
⑤
可与生物大分子形成氢键，增强与受体的结合力
【单选题】
有关药物代谢的描述，错误的是（）。
①
药物代谢后可能会作用增强、作用降低、毒性增大或产生活性
②
药物代谢是在酶的催化作用下完成的
③
任何药物都要先后经过I、Ⅱ相代谢后才会排出体外
④
是药物经过生物转化反应后转变成极性分子，再经过结合反应排出体外的过程
⑤
药物经I相反应后结构中会暴露出羟基、氨基、羧基或巯基等极性基团