关于我国各地水土资源的叙述,正确的是() 西北地区土地广阔,水资源不足。 北方草原广阔、耕地多,水资源不足。 南方水田少,但水源充足。 青藏高原广阔,耕地多,光照长土壤肥力高。
A Convention about safety of life at sea was adopted in 1974 which included a new amendment procedure, according which an amendment shall enter into force() after being accepted by more than two thirds of the Parties。 after being accepted by more than half of the Parties。 within a specified period of time with no objections。 within a specified period of time with no exceptio。
简述田口方法。
下列关于私人银行起源和发展的说法中正确的是()。 发源于欧洲。 全球发展迅速,资产规模不断壮大。 目前欧洲是发展重心。 目前亚洲是发展重心。
弹簧操动机构为什么必须装有“未储能信号”及相应的合闸回路闭锁装置?
黄土高原自然灾害发生越来越频繁的原因是()