运算器、控制器和寄存器集成于一体，称为中央处理器。
参考答案：对
Although he has become wealthy, Mr. Wood remains ________ he used to be, modest and friendly.
A．when
B．where
C．how
D．what
客房电梯间到走廊端头客房的距离应控制在（）之内。
A、30米
B、40米
C、50米
D、60米
