（）是用关闭再打开电源的方式来启动计算机系统。
A.热启动
B.冷启动
C.关机
D.待机
参考答案：B
She was scared the yard because she was scared by the big dog at the gate. [ ]
A．to go into; to be bitten; lay
B．of going into; to bite; laying
C．of going into; to be bitten; lay
D．to go into; of being bitten; lying:
对流
