在β-TG和PF4测定中选择的抗凝剂是()
A.3.8%枸橼酸钠
B.109mol/L枸橼酸钠
C.5%EDTA-Na2溶液
D.草酸盐抗凝剂
E.肝素抗凝剂
参考答案:C
Many people would rather _____ eating out on holiday than give up their broadband, mobile phone and pay-TV services, according to a recent survey.
A.cut off
B.cut in
C.cut back on
D.cut up
对Ⅰ型呼吸衰竭患者若给予高浓度氧疗仍无效,其原因很可能为()。
A.严重肺通气功能障碍
B.严重肺动-静脉样分流
C.通气/血流比例增大
D.肺弥散功能障碍
E.氧耗量增加