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数据库管理系统是指一种操作和管理数据库的软件，用于建立、使用和维护数据库，对数据库进行统一管理和控制，以保证数据库的安全性和完整性
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数据库是一个存放数据的仓库，这个仓库是按照一定的数据结构来组织、存储数据的。
根据中文句子填空，首字母已给出。请注意使用正确时态。1.离婚以后，我一直一个人生活，全身心投入我的事业当中。Since divorce, I've lived alone and i_____________ myself in my career.2.科学家研制了一个模型来模拟地球全年的气候。The scientist developed one model to s_____________ a full year of the globe's climate.3.他们搬进了一个公寓，这是他们唯一能负担得起的地方，尽管遇到了一些严重的挫折，他们还是开始过上幸福的生活。They move into a tenement, the only place they can afford, and set about making a good life despite some serious s_____________.4. 她的乐观情绪似乎感染了周围所有的人。Her optimism seemed to i__________ all those around her.5. 他努力地保持身体健康。He s___________ hard to keep himself very fit.6.尽管自行车有许多明显的优点，但是它也存在它的问题。Despite many m_____________ advantages of bicycle, it is not without its problem.7.真巧！我没料到会在这里见到你。What a c______________! I wasn’t expecting to see you here.8.直升机已经更新换代，装配了现代化设备。Helicopters have been u______________ and modernized.9.想想几百年前当被告知地球是圆的而不是平的时,多少人对此表示过怀疑。Think how s____________ many people were when being told the world is round, not flat hundreds of years ago.10.给我们印象最深的，不是他所取得的显著成就，而是他的创业精神。What has impressed me most is not the n____________ success he has achieved but his pioneering spirit.
根据中文句子填空，首字母已给出。请注意使用正确时态。1.孩子们到动物园就是为了看圈养的动物。Children come to zoos precisely to see c______________ animals.2.她盖着毯子缩成一团。She h_____________ under the blankets.3.根据一位不愿透露姓名的员工所述，这家公司曾从事非法活动。According to one employee, who wishes to remain a________________, the company engaged in illegal activities.4.过度拥挤和恶劣的卫生状况导致难民营中出现疾病。Overcrowding and poor sanitary conditions led to disease in the r___________ camps.5.小心那只花瓶——很容易打碎的。Be careful with that vase – it's very f__________.6.下层妇女表达愿望和不满的方式都被剥夺了。Lower-class women were d____________ of any way of voicing their aspirations and grievances.7.仪式与节日是人类社会不可缺少的一部分。Rituals and festivals are i____________ parts of human society.8.降低食品标准可能会危及餐厅顾客和员工的健康。Compromising food standards could j_______________ the health of restaurant customers and staff.9.他说：“现在人们对我们的啤酒赞不绝口。”“People are c_________________ us a lot on our beer at the moment,” he states.10.印度东北地区的移民问题主要是原住居民与外来移民的冲突问题。The primary migration problem in Northeast India is the conflict between native and i______________.
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