A. of
B. in
C. for
D. with
第1题:
Software Engineering is best described as ( ).
A.the practice of designing, building, and maintaining off-the-shelf software from prefabricated parts
B.the practice of designing, building, and maintaining ad-hoc software without the use of formal methods
C.the practice of designing, building, and maintaining reliable and cost-effective software using standard techniques
D.the practice of designing, building, and maintaining fast and flexible software specifically for engineering applications
第2题:
第3题:
第4题:
第5题:
第6题:
SysTick系统定时器延时1s的写法可以是()
A.Delay_us(1000000);
B.Delay_us(500000); Delay_us(500000);
C.Delay_us(400000); Delay_us(500000); Delay_us(100000);
D.Delay_us(1000000); Delay_us(1000000);