美国麻省理工学院的福莱思特和罗伯茨等创立的系统动态学是系统管理的进一步的发展。
A.正确
B.错误
正确答案是A
NEW PRODUCT WILL SAVE LIVES woa LIVESDrinking water that looks clean may still contain bugs, which can cause illness.A small company called Genera Technologies has produced a testing method in three stages, which shows whether water is safe. T
