以下哪些设备属于太阳能-市电(油机)互补型电源系统的主要部件太阳能电池组件、太阳能方阵安装支架、()。 ["A.市电配电设备(油机)","B.48V开关电源","C.一体化控制器","D.蓄电池组"]
以下有关动粒结构和功能不正确的叙述是() ["动粒是在细胞分裂期组建的","动粒在细胞的间期要去装配","动粒产生分裂期检验点信号","介导染色体与纺锤丝间作用"]
以下属于磷化的作用的是()。 ["增加涂层厚度","为涂层提供洁净的表面","提高漆膜耐腐蚀性能","提高漆膜的附着力"]
以下农信银事务信息报文,不关联原交易的是()。 ["自由格式","汇划查询","汇票查询","票据查询"]
A vessel which is being assisted by an icebreaker should indicate that she is ready to cast off the towline by(). ["displaying code letter Y (Yankee)","sounding five short blasts on his whistle","displaying code numeral 5","sounding one prolonged blast on his whistle"]
对于间歇供气的城市用户,站场在指定气量分输完成前()分钟必须电话通知下游门站,预计停气时间,经()确认后方可关阀停气。