皮皮学，免费搜题
登录
搜题
【简答题】
通过互联网或书籍查找常见的数据库的数据类型有哪些?并学习掌握,下节课程分享。
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】Suppose that the demand curve for desktop computers shifts rightward and at the same time the supply curve shifts leftward. Which of the following could have caused these shifts?
A.
Desktop computers are a normal good and incomes increased, while more firms entered the market.
B.
The price of a laptop computer, a substitute for desktop computers, fell and the cost of producing desktop computers decreased.
C.
Consumers purchased more computers because of the Christmas season and the labor costs of producing desktop computers decreased.
D.
Desktop computers are a normal good and incomes increased, while the labor costs of producing personal computers increased.
E.
Desktop computers are a normal good and incomes decreased, while the labor costs of producing personal computers increased.
【简答题】All the desktop computers are ________to the printer.
【单选题】岩石是一种或多种矿物或岩屑组成的集合体,按其成因分成()三大类。
A.
花岗岩、火山岩和变质岩
B.
岩浆岩、沉积岩和变质岩
C.
花岗岩、石灰岩和变质岩
D.
岩浆岩、大理岩和变质岩
【简答题】岩石是一种或多种矿物或岩屑组成的集合体,按其成因分成岩浆岩、沉积岩和()三大类。
【单选题】2001 年教育部颁布了(),并在全国 38 个试验区进行了基础教育体育课程改革实验,标志着第八轮体育课程改革的正式拉开帷幕。
A.
《中小学体育工作督导评估指标体系》
B.
《全国亿万学生阳光体育运动》
C.
《 关于强化学校体育促进学生身心健康全面发展的意见 》
D.
《体育与健康课程标准（实验稿）》
【简答题】desktop computers
【单选题】Which chart is correct? DC--desktop computers, NC—notebook computers CC--cycle computers
A.
B.
C.
相关题目：