有色金属管不包括() ["钢管","铜管","铝合金","铅管"]
柴油发动机的起动转速为()r/min。 ["30","30~50","100","150~200"]
下面哪个有关生成树协议的参数是不可配置的() ["HelloTime时间","MessageAge时间","MaxAge时间","ForwardDelay时间"]
回转机械常见故障不包括() ["齿轮故障","轴承故障","电机故障","管道弯曲"]
最早实施“普及教育”的社会是()。 ["奴隶社会","封建社会","资本主义","社会主义社会"]
写出《江畔独步寻花》(唐・杜甫)的原文及其释义。