A、due
B、owing
C、thanks
D、because
When you compare the differences between half-duplex and full-duplex Ethernet, which of the following characteristics are exclusive to half-duplex? (Select two answer choices)A.Half-duplex Ethernet operates in a shared collision domain.B.Half-duplex Ethernet operates in an exclusive broadcast domain.C.Half-duplex Ethernet has efficient throughput.D.Half-duplex Ethernet has lower effective throughput.E.Half-duplex Ethernet operates in an exclusive collision domain.
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*((int *)pval)/=2; //我想问一下,这个语法怎么理解,太复杂了 具体代码如下。#include "stdio.h"void half(void *pval,char type);main(){ int i=20; long l=100000; float ff=12.456; double d=123.044444; printf("%d\n",i); printf("%ld\n",l); printf("%f\n",ff); printf("%lf\n",d); half(&i,'i'); half(&l,'l'); half(&ff,'ff'); half(&d,'d'); printf("\n%d",i); printf("\n%ld",l); printf("\n%f",ff); printf("\n%lf",d); return 0; }void half(void *pval,char type){ switch(type) { case 'i': { *((int *)pval)/=2; //我想问一下,这个语法怎么理解,太复杂了 break; } case 'l': { *((long *)pval)/=2; break; } case 'ff': { *((float *)pval)/=2; break; } case 'd': { *((double *)pval)/=2; break; } } }
b)main(){union{ /*定义一个联合*/int i;struct{ /*在联合中定义一个结构*/char first;char second;}half;}number;number.i=0x4241; /*联合成员赋值*/printf("%c%c\n", number.half.first,mumber.half.second);number.half.first='a'; /*联合中结构成员赋值*/number.half.second='b';printf("%x\n", number.i);getch();}
执行下列语句后指针及链表的示意图为(43)。L = (LinkList) malloc ( sizeof (LNode) );P = L;for(i =0;i <=3;i ++) {P→next = (LinkList) malloc (sizeof (LNode));P = P→next;P→data = i * i + 1;}A.B.C.D.
●试题二阅读下列函数说明和C代码,将应填入(n)处的字句写在答题纸的对应栏内。【说明】该程序运行后,输出下面的数字金字塔【程序】include<stdio.h>main (){char max,next;int i;for(max=′1′;max<=′9′;max++){for(i=1;i<=20- (1) ;++i)printf(" ");for(next= (2) ;next<= (3) ;next++)printf("%c",next);for(next= (4) ;next>= (5) ;next--)printf("%c",next);printf("\n");}}
What are the differences between full-duplex Ethernet and half-duplex Ethernet?()A. Half-duplex Ethernet operates in a shared collision domain.B. Full-duplex Ethernet has a lower effective throughput.C. Half-duplex Ethernet operates in a private collision domain.D. Full-duplex Ethernet allows two-way communication.E. Half-duplex Ethernet operates in a private broadcast domain.
I've been waiting for him for ______ hour and ______ half. A. ×; × B. the; a C. a; × D. an; a