练习中心
顺序练习
按照章节顺序依次练习所有题目,适合系统学习
组卷考试
随机抽取题目进行练习,适合巩固知识和检验学习效果
错题重做
针对做错的题目进行重点练习,强化薄弱环节
章节练习
选择特定章节进行练习,针对性提升某一知识点
收藏题目
集中练习收藏的重点题目,加深理解和记忆
考试记录
按题型或难度进行专项练习,突破学习瓶颈
题型练习
按照章节题型获取题目练习,适合系统学习
小练习
随机抽取题目练习
高频错题
按题目做错次数,加深记忆
题目预览
Alan was always in trouble with the police when he was young, but he’s now a ________ married man.
Given the chance to show the ability, he regained the ______ and began to succeed in school.
It is so difficult to______ the bottom of the ocean because some parts are very deep.
It was about 30 seconds before Alex ______ from the water, we were quite scared.
We often ______ that when other people do the same things as we do, they do them for the same reasons, but this assumption is not always reasonable.
There is widespread concern that the rising unemployment may _____ a threat to social stability.
Afte a (an) ______ physical exam, my doctor said I was in good condition except that my blood pressure was a little high.
It is well known that China is a country with rich natural ______ and a very big population.
Sam ______ the gift of imagination from his family, but he lacked the driving power to take action.
A bee that has found honey is able to ______ to other bees the information they need in order to collect honey.