抗人球蛋白试验阳性时，应首先怀疑下列哪种疾病（）

A.再生障碍性贫血

B.白血病

C.巨幼细胞性贫血

D.缺铁性贫血

E.自身免疫性溶血性贫血

Is it the country _____ you studied English _____ you are going to visit next week?

A．in which; which

B．where; that

C．that; that

D．which; that