题目内容
Tom's mother told him _B_ eating too much meat.
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_A_ carefully，Michael！There's a school ahead.
Mary was __ ___ she got the disease that her mum had to stop working to look after her. ___
3、采用双机串行通信，其中甲机发送数据,乙机接收数据,两机fosc为11.0592MHz,波特率为2.4k,串口方式1。接受程序部分如下所示：……void main(void){unchar receiv;TMOD=0x20; //T1定时方式2TH1=TL1=0xf4; //2400b/sPCON=______ ; //波特率不加倍SCON=______ ; //串口方式1，TI和RI清零TR1=1; //启动T1while(1){ while(RI==1) //等待接收完成 { RI=0; //清RI标志位 Receiv=SBUF; //取得接收值 SBUF=receiv; //结果返送主机 while(TI==0); //等待发送结果 TI=______ ; //清TI标志位 P2=map[receiv]; //显示接收值}}}
2、采用T0定时方式2在P2.0口输出周期为0.5ms的方波(设fosc=12MHz)。采用中断方式编写的程序如下：#include sbit P2_0=P2^0; // 该行程序功能是______ timer0 ( ) interrupt1 // 若将T0换为T1，该行程序的中断号是______ { P2_0 = !P2_0; }main( ){ TMOD =______ ; TH0 = TL0 =______ ; EA= ET0 = 1; TR0=1; while(1);}
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