气滞血瘀型溃疡性结肠炎:
A.大肠B.肺C.肾D.肝E.脾
参考答案:A
The police were seeking more information to find out _____ the rich merchant. [ ]
A. who was it that killed
B. who it was that killed
C. it was who killed
D. who was it killed
关于变速直线运动的平均速度公式v=s/t理解,其中正确的是[ ]
A.v的大小与s、t的选取无关
B.能够准确地反映物体运动的情况
C.在任何情况下,v是不变的
D.必须指明在哪段路程或某段时间内才有意义