ONU是指（）。
A.光网络终端
B.光线路终端
C.光网络单元
D.光分配网
参考答案：C
The wise president ______ the whole nation after the war broke out. [ ]
A. held together
B. carried together
C. took together
D. brought together
急性肾小球肾炎可适当活动的指征是（）
A.肉眼血尿消失
B.管型消失
C.血压正常
D.水肿消退
E.尿蛋白阴性
