已知一组数据1,a,3,6,7,它的平均数是4,这组数据的众数是( )。
3
风湿热时链球菌感染证据的检查有()
A.白细胞计数和中性粒细胞增高
B.因拭子培养发现A组乙型链球菌
C.血沉增快
D.C反应蛋白增高
E.抗链球菌抗体滴度增高
Why is it likely that he won’t come to this meeting().
A.He doesn’t want to come to this meeting.
B.He has to go to his appointment with the dentist.
C. He has another meeting to attend.