X连锁高IgM血症的诊断依据是:
A.CD4阳性T细胞减少
B.CD8阳性T细胞缺乏
C.T细胞CD40L表达缺陷
D.CD45RO表达缺陷
E.CD20阳性B细胞减少
参考答案:C
– Who are playing football in the gym now?
– ________ the students from No. 1 Middle School.
A.They are
B.It is
C.There are
D.That is
在中医学上,被称作“孤腑”的是()
A.胆
B.胃
C.膀胱
D.三焦
E.小肠