皮皮学，免费搜题
登录
搜题
【单选题】
计算机硬件结构主要包括三个组成部分,它们分别是 ( ) 。A.
CPU 、存储器、输入 / 输出设备
B.
CPU 、运算器、控制器
C.
存储器、 1/O 设备、系统总线
D.
CPU 、控制器、 1/O 设备
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
【简答题】A．witty B．powerful C．wealthy D．competitive
【单选题】Which of the following best explains why monopolistically competitive firms face a downward sloping demand curve while perfectly competitive firms do not?
A.
Monopolistically competitive firms sell a differentiated good.
B.
Monopolistically competitive industries have only a few firms.
C.
Monopolistically competitive firms have barriers to entry.
D.
Only industries with free entry and exit have firms that face horizontal demand curves.
【简答题】This offer is competitive and based on an expanding market.
【简答题】Sports are by nature competitive. But recently, the over-competitive nature youth sports seem to have taken on has led to cause for ____. Those who are strongly against competition point out that in a...