微机的数据信息采用二进制，二进制数的优点是
A．容易表示
B．节省设备
C．运算简单
D．可靠性高
E．位数长，不易记忆
参考答案：A,B,C,D
希腊文明的源头是 （ ）
A．克里特文明
B．迈锡尼文明
C．爱琴文明
D．荷马时代
A security market with price continuity is most accurately characterized as a market in which:（）
A. assets can be bought or sold quickly.
B. an asset’s price reflects all available information about the asset.
C. prices do not change much from one transaction to the next in the absence of new information.
