题型:问答题 简答题 ——Mike, have you heard that Mr. Black knocked down a girl and hurt her badly yesterday morning. ——Yeah. He_____too fast to stop his car while the girl was crossing the street.A.was drivingB.drove C.had drivenD.would drive 查看答案
题型:问答题 简答题 病人自身肿瘤标志物基值的变化,对于解释结果极有参考价值。一般病人自身测定结果在排除检测方法引起的误差后,上升或降低多少有临床价值( )A.25%B.15%C.10%D.20%E.50% 查看答案