They became good friends during the war, and since then their lifelong friendship has______ tests of life and death.

A．gone through

B．got through

C．stood up

D．cleared up

移植肾发生急性排异时最明显的征象是（）

A.肾迅速缩小

B.出现肾积水

C.肾迅速增大

D.肾大小可无变化

E.肾逐渐增大，后来反而缩小