下面程序由两个源程序文件：t4.h和t4.c组成，程序编译运行的结果是： 【18】 。
t4．h 的源程序为：
#define N 10
#denne f2(x) (x*N)
t4．c 的源程序为：
#include ＜stdio. h＞
#define M 8
#define f(x) ((x)*M)
#include "t4.h"
#main()
int i, j；
i=f(1+1)； j=f2(1+1);
printf(%d%d\n"，i, j);

WebSQL is a SQL-like （1） language for extracting information from the web. Its capabilities for performing navigation of web （2） make it a useful tool for automating several web-related tasks that require the systematic processing of either all the links in a （3）, all the pages that can be reached from a given URL through （4） that match a pattern, or a

combination of both. WebSQL also provides transparent access to index servers that can be queried via the Common （5） Interface.

1.见题干

A. query 

B. transaction 

C. communication 

D. programming