辨别分析。 _________________________________ 发布时间:2017-07-30 14:23 │ 来源:www.tikuol.com 题型:辨析题 问题: 辨别分析。_______________________________________________________________________________
题型:辨析题 如果有理数a,b满足a+b>0,ab<0,则下列式子正确的是( )A.当a>0,b<0时,|a|>|b|B.当a<0,b>0时,|a|>|b|C.a>0,b>0D.a<0,b<0 查看答案
题型:辨析题 Read and choose. 补全对话。A: Hello! 1 B: This is Sam. Who's that? A: This is Kate. 2 this evening? B: I am going to play basketball. 3 A: Yes, but 4 A. Would you like to go with me? B. I need to ask my mum. C. May I speak to Sam? D. See you soon. E. What are you going to do? B: Well, I can call you after supper.A: Thanks. 5 查看答案
题型:辨析题 呼吸衰竭的血气诊断标准是()A.动脉血氧含量低于9mmol/LB.动脉血氧饱和度(SaO)低于90%C.pH值<7.35D.动脉血二氧化碳分压(PaCO)高于50mmHgE.动脉血氧分压(PaO)低于60mmHg 查看答案