代偿性代谢性酸中毒()。 ["pH7.35,PaO2<\/sub>80mmHg,PaCO2<\/sub>20mmHg","pH7.38,PaO2<\/sub>50mmHg,PaCO2<\/sub>40mmHg","pU7.40,PaO2<\/sub>60mmHg,PaCO2<\/sub>65mmHg","pH7.30,PaO2<\/sub>50mmHg,PaCO2<\/sub>80mmHg","pH7.25,PaO2<\/sub>70mmHg,PaCO2<\/sub>30mmHg"]
LF31T-40/3.5型螺杆压缩机负载运行时,油压力应大于()MPa。 ["0.2","0.25","0.3","0.35"]
碰墙式二过一,一般两人的传球距离不超过() ["5米","15米","30米","40米"]
下列产物中,一般情况下不因微生物种类不同而有明显差异的是() ["氨基酸","激素","维生素","抗生素"]
按矿用三牙轮钻头的排气方式可分为()种。 ["二","三","四","五"]
怎样用拉杆式千斤顶配锥形螺杆锚具张拉钢丝束?