ERP系统由于集（）与先进的管理思想于一身，堪称现代企业在信息时代生存和发展的基石。
A、互联网
B、信息技术
C、电信网
参考答案：B
It was one of those days when it looked at first something interesting could happen, but then later, when you didn't expect anything, almost everything happened.
A．nothing
B．anything
C．everything
D．all things
6个月以后的小儿开始出现的心理反应是（）
A.认生
B.反抗
C.失望
D.否认
E.恐惧
