【单选题】某慢性肺源性心脏病患者,70 岁,缺氧和二氧化碳潴留同时并存,发绀,宜吸入氧浓度为
【单选题】大连盛凯公司(0903535020)委托辽宁省机械设备进出口公司(0801914031)与日本三菱重工签约进口工程机械,并委托大连外运公司代理报关。在填制进口报关单时,“收/发货人”栏应为
B.
辽宁省机械设备进出口公司(0801914031)
【单选题】The island is ______ the mainland by the bridge built ten years ago.
【单选题】He confesses that he has done it.
【单选题】What has the man done to help?
A.
He has offered the information.
B.
He has gone downstairs.
C.
He has offered a newspaper.
【单选题】某慢性肺源性心脏病患者,70岁,缺氧和二氧化碳潴留同时并存,发绀,宜吸人的氧浓度为