A.John was prevented from going fishing. B.Jimmy got sick from eating too many grapes. C.They stayed with the wifes cousin. D.They had some trouble with their automobile.Section B
【简答题】下列哪条语句可实现PB4引脚输出高电平? (10.0分)A. GpioDataRegs.GPBDAT.bit.GPIOB4=1; B. GpioDataRegs.GPBSET.bit.GPIOB4=1; C. GpioDataRegs.GPBCLEAR.bit.GPIOB4=1; D. GpioDataRegs.GPBTOGGLE.bit.GPIOB4=1;