对于220kV及以上重要变电站,当站址土壤和地―F水条件会引起钢质材料严重腐蚀时,宜采用()材料的接地网。 ["铜质","铝质","镀锌园钢","镀锌扁钢"]
大陆板块间隔几个银河年,就会联合起来()? ["两个","三个","四个","五个"]
ISO9001:2000质量管理体系中所描述和说明的供应链是指() ["顾客→组织→分承包商","分供方→供方→组织","组织→顾客→供方","供方→组织→顾客"]
中国联通手机音乐门户网站是() ["www.10155.com","www.musiC.com","www.10157.com","www.wo.com.c"]
马克思的货币起源说立足于() ["劳动价值论","商品价值论","劳动价格论","商品价格论"]
小麦全膜覆土穴播栽培技术田间管理有哪些注意事项?