对手术耐受力不良的患者特殊准备中,不正确的是()A.营养不良者,最好能达到氮正平衡B.高血压患者,应用药使血压降至正常再手术C.重度贫血患者,术前予以纠正D.急性心肌梗死患者,6月内不施行择期手术E.呼吸功能障碍者,麻醉前用药量要小
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The word "confrontation" in the last paragraph most probably means ______.A.opposition B.determinationC.protection D.confusion
The book ______ well and was repri nted many times.A.sells B.is selling C.was soldD.sold
__________ [A]first [B]contrary [C]reverse [D]different
若集合M={(x,y)| 3x一2y=-l),N={(x,y)| 2x+3y=8),则M∩N=() A.(1,2) B.{1,2) C.{(1,2)} D.φ