A.0.45
B.0.5
C.0.7
D.0.9
[单选题]A.0.45B.0.5C.0.7D.0.9
[单选题]A.2点,80%B.2点,70%C.4点,80%D.4点,70%
[单选题]A.28.87AB.50AC.721.7AD.1250A
[单选题]A.0.8h左右B.1.8h左右C.2.8h左右D.3.8h左右
[单选题]A.10.1B.13.9C.50.4D.100.7
[单选题]A.任何温度下均自发B.任何温度下均非自发C.低温下非自发,高温下自发D.低温下自发,高温下非自发
[单选题]A.824h左右B.724h左右C.624h左右D.524h左右
[单选题]A.0.75B.0.82C.0.91D.0.96