条播是按一定的行距,将种子均匀地撒在播种沟中,其优点() ["播种集中,能保证苗木的数量和质量","便于抚育管理,机械化作业","苗木受光均匀、通风好","节省种子方便起苗"]
What does the "Inside Global" address represent in the configuration of NAT()。 ["the summarized address for all of the internal subnetted addresses","the MAC address of the router used by inside hosts to connect to the Internet","a globally unique, private IP address assigned to a host on the inside network","a registered address that represents an inside host to an outside network"]
《铁路技术管理规程》(普速铁路部分)行车有关人员,在任职期间,须按照铁路职业技能培训规范等规定,不定期参加岗位适应性培训和业务考试,考试不合格的,不得继续履职。
在水利水电工程中,对于土石方工程,当直接经济损失大于()时,为特大质量事故。 ["A.100万元 ","B.1000万元 ","C.3000万元 ","D.30万元"]
《铁路技术管理规程》(普速铁路部分)行车有关人员,在任职期间,要不定期进行身体检查,身体条件不符合任职岗位要求的,应调整工作岗位。
铁路运输的优点有?