本实用新型属于ROV技术领域,公开了一种ROV水上通讯装置及ROV系统,主要解决了现有技术中因频繁的插拔线缆接口从而导致通讯异常等技术问题.ROV水上通讯装置的结构包括水面信息接收单元和显控系统,所述水面信息接收单元与所述显控系统之间通过无线设备连接.本实用新型具有操作简单,能够有效解决现有技术中存在的技术问题等优点....
We study the house price recovery in the U.S. single-family residential housing market since the outbreak of the mortgage crisis, which, in contrast to the preceding housing boom, was not accompanied by a rise in homeownership rates. Using comprehensive property-level transaction data, we show ...
题目四、补全单词。(10分)1. pr_12.(sxp)_p 3. b g4. ch p5.mc6.sm 17.s Z8.s 19. h lp10.d11 相关知识点: 试题来源: 解析 四、1.pretty2. expensive3.big/bag4.cheap5.much6. small7.size8.sale9.help10.dollar 反馈 收藏 ...
搜索智能精选题目 氧气雾化吸入时氧气流量为( )A. 1～2L/minB. 2～4L/minC. 4～6L/minD. 6～8L/minE. 8～10L/min答案 D