血液中使血红蛋白氧解离曲线发生右移的因素是()。
A.CO2分压升高
B.pH值升高
C.2,3-二磷酸甘油酸减少
D.温度降低
参考答案:D
Mary called me to come to the party, but she herself didn’t .
A.show around
B.show up
C.come out
D.put up
中学生用的课桌的高度接近( )
A.70cm
B.70dm
C.0.007km
D.0.07m