This dictionary has been ____ to us. A．o

搜题请搜索小程序“爱下问搜题”

问题选择题

This dictionary has been ____ to us.

A．of great help

B．of very helpful

C．of quite helpful

D．very much helpful

答案

答案：A

be +形容词=" be" of +(形容词)+名词.

选择题

填空题

有以下程序(说明：字符0的ASCII码值为48)：
#include＜stdio.h＞
main()
char c1, c2;
scanf("%d", ＆c1);
c2=c1+9;
printf("%c%c\n", c1, c2);

若程序运行时从键盘输入48＜回车＞，则输出结果为______。