At last the boy had no choice but ________ the bread from the supermarket. [      ]

A. admit to have stolen

B. admit having stolen

C. to admit to have stolen

D. to admit having stolen

大、中型通信局（站）一般采用（）高压市电，经电力变压器降为380V/220V低压后，再供给整流器、不间断电源设备、空调设备和建筑用电设备。

A、1KV

B、6KV

C、10KV

D、35KV