电动机的电磁转矩与机械负载的反抗力矩相平衡时，即T =TL时，电动机才能以恒速运行。
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如果电动机的电磁转矩大于反抗力矩，即T >TL时，电动机将产生加速运行。
A. 对
B. 错
Microprocessor_________.
A. is the “brains” of the computer system
B. is mounted onto a carries package
C. is contained within a cartridge
D. has two basic components: the control unit and arithmetic-logic unit
We often express chip capacities in word size, word size can be_________.
A. one byte
B. two bytes
C. three bytes
D. four bytes
We usually measure the processing speed in today’s computer according to the _________.
A. thousandth of a second
B. millionth of a second
C. billionth of a second
D. trillionth of a second
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