可使氧离曲线右移的因素是血液的
A.CO2分压升高B.H+浓度降低C.pH升高D.温度降低E.O2分压升高
参考答案:A
在反应Zn+2HNO3+NH4NO3====N2↑+3H2O+Zn(NO3)2中,每溶解1 mol Zn,电子转移了( )
A.2 mol
B.3 mol
C.4 mol
D.5 mol
---Sorry. I must be off.
---How nice it would be if you_____a bit longer!
A.stay
B.would stay
C.stayed
D.have stayed