MCS-51单片机有哪几个中断源,他们的对应的中断编号是多少?
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简述单片机技术应用课程的知识要点,举例说明单片机技术在生活中的应用。
The type of business unit which is described as sole trader (or sole proprietor) is one which is owned, run and controlled by one person.
A. master
B. owner
C. manager
D. worker
The type of sole trader business is often found in retailing and direct services.
A. selling small quantities of goods
B. investing a large amount of money
C. selling large quantities of goods
D. investing a small amount of money