体内半寿期最短的凝血因子是A.因子Ⅴ B.因子Ⅶ C.因子Ⅷ D.因子Ⅸ E.因子Ⅹ 发布时间:2017-06-23 22:55 │ 来源:www.tikuol.com 题型:单项选择题 问题: 体内半寿期最短的凝血因子是A.因子ⅤB.因子ⅦC.因子ⅧD.因子ⅨE.因子Ⅹ
题型:单项选择题 一辆小车,重5000N,在水平路面上匀速直线运动的过程中,受到的阻力是车重的0.05倍.问:(1)小车的质量是多少?(g取10N/kg)(2)此时使小车前进的牵引力大小为多少? 查看答案
题型:单项选择题 —Is your grandma better now? —Er, in fact, things are getting ________. Doctors are trying their best.[ ]A. bad B. ill C. worst D. worse 查看答案