移植肾超急性排斥反应发生的时间为（）
A.1周
B.48小时内
C.1个月
D.3～5天
E.6个月
参考答案：B
I really don’t know ___ ___I kept the secret papers.
A．where was it
B．it was where that
C．where it was that
D．where was it that
春秋战国时的诸子百家主要有哪些派别
