What ( )Mr.Peterson gave us! A、good advicesB、a good adviceC、good adviceD、advices
What ( )Mr.Peterson gave us!
A、good advices
B、a good advice
C、good advice
D、advices
相关考题:
The word “tallied” (Line 3, Para. 2) probably means ______.A.calculatedB.corresponded toC.listedD.gave
如b所示电压源与图a所示电路等效,则计算US'和R0的正确算式是:(A)Us'=Us+IsR1,R0=R1//R2+R3(B)Us'=Us-IsR1,R0=R1//R2+R3(C)Us'=Us-IsR1,R0=R1+R3(D)Us'=Us+IsR1,R0=R1+R3
若51单片机使用频率为6MHz的晶振,则振荡周期为:,机器周期为:,指令周期为:A.1/6us,2us,不定B.1/12us,2us,1/3usC.1/6us,1us,不定D.1/12us,1us,1/3us
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);