在MCS-51单片机中的中断源有()个,分别为() 、() 、() 、 ()和()。
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MCS-51单片机有2级优先级。()
A. 对
B. 错
The history of ballet began in Italy during the 15th and 16th centuries.
A. F
B. O
Youngesters should settle their rivalries through competitive dance instead of fighting.
A. F
B. O
The Bugatti Veyron Super Sport is the fastest car in productio today with a top speed of 267 MPH.
A. F
B. O