FTTH接入光缆网一般由三部组成，其中从小区分纤盒到用户家的光缆称为（）
A.主干光缆
B.入户光缆
C.配线光缆
D.接入光缆
参考答案：B
The policeman's attention was suddenly caught by a small box which ______ placed under
the Minister's car.
A. has been
B. was being
C. had been
D. would be
关于急性重型肝炎的病变，不正确的是（）
A.肝细胞广泛坏死
B.肝窦扩张充血及出血
C.网状支架塌陷
D.淋巴细胞及巨噬细胞浸润
E.可见明显的肝细胞再生结节
