【单选题】. .In my opinion, no search engine can __________ Baidu in search scope and speed.
【单选题】A type of search engine that submits requests to other search engines, organizes their responses, eliminates duplicate responses, orfers hits, and then provides an edited list.
D.
specialized search engine
【多选题】Which of the following are true for search engine optimization?
A.
selecting key words used on the Web pages
B.
updating content frequently
C.
designing the site so it can be easily read by search engine programs
【单选题】In my opinion, no search engine can ________ Baidu in search scope and speed. [ ]
【简答题】请将Proteus 仿真图(4个发光二极管的点亮) 以附件上传,KEIL C 程序保存好,下周上课时候检查
【单选题】Which of the following is(are) legitimate statement(s) about search engine’s business?
A.
Search engine can be considered as “free” because we do not pay directly to a search engine to do a search
B.
Search engine can be considered as “not free” because each search generates a carbon footprint that can potentially damage our shared environment which is a common good
C.
Search engine can be considered as “not free” because the price of merchandise that we buy, having advertising on the search engine, includes charges from that search engine
D.
All of the options given
【单选题】 有以下程序: #include main() { char a,b,c,d; scanf("%c%c",&a,&b); c=getchar(); d=getchar(); printf("%c%c%c%c\n",a,b,c,d); } 当执行程序时,按下列方式输入数据(从第1列开始,代表回车,注意:回车也是一个字符) 12 34 则输出结果是( )
【单选题】有以下程序 #include main( ) { char ch = 'B'; while (ch < 'E' ) { printf("%d", ch - 'A' ); ch++; } printf("\n"); } 程序运行后的输出结果是