简述弗莱堡学派的货币供应原则?
某地区发生安全事故,死亡25人并损失7000万元,那么其生产安全事故等级为()。 ["特别重大事故","重大事故","较大事故","一般事故"]
简述信息内容与信息载体的关系
架空游览车类车类游乐设施的典型代表有()。 ["太空飞车","滑行龙","太空漫步","架空脚踏车"]
The interface is up and protocol is up. What level of logging is enabled when you get these messages?() ["alerts","errors","critical","notificatio"]
塑料注射模具由()和()两大部分组成。