PC机主存储器中基本存储单元的长度是______。
参考答案：字节
水泵轴承润滑脂以占轴承体空间（）为宜。
A、低于1/3
B、低于1/2
C、高于1/3
D、1/3-1/2
A．The advanced equipment in the laboratory.
B．The so-early start-working hour.
C．The terrible working habit of his colleagues.
D．The interval between the start-working hours of two places.
