Many American schools offer online programs, and international students __.

A． should be careful of being cheated

B． are certain to earn a degree

C． should know about programming

D． are faced with many difficultiesA

[单选题]Why do many people buy things online on the 1lth of November every year? They think the things on sale are_A． much cheaperB． much lowerC． more expensiveD． .much higher

[单选题]Many modern critics of American literature have called Mark Twain, born Samuel Clemens, ______.A． as America's greatest writerB． was America's greatest writerC． America's greatest writerD． to have been America's greatest writer

[问答题]Many schools will not open for lessons until the beginning of September.

[单选题]The following suggestions increase program's(73)and make them easier to(74):Use a standard indention technique, blank lines, form. feeds, and spaces.Insert plenty of comments into your code.A．securityB．reliabilityC．readabilityD．usability

[单选题]The purpose of this new Care Alert program is to save children's ______.A． kidnappersB． livesC． toysD． parents

[试题]#includemain(){ char str[ ]=“The C program”,c;int i;for(i=2;(c=str[i])!=‘/0’;i++){ switch(c){ case ‘g’: ++i; break;case ‘o’: continue;default: printf(“%c”,c); continue;}printf(“*”);}printf(“/n”);}

[单选题]In the（ ），businesses offer services for which they charge a fee that is based on the number of size of transactions they process.Some of these services lend thenselves well to operating on the Web.A．Fee-for-Transaction Revenue ModelB．Advertising-Supp

[单选题]H．is efforts to raise money for his program were because no one showed any intention to take a cent out of their pockets.A． in place B. in sight C. in effect D. in vain

[单选题]To document your code can increase program (72) and make program easier to (73) .A．reliabilityB．securityC．readabilityD．usability

[单选题]To document your code can increase program(72) and make program easier to(73)．A．reliabilityB．securityC．readabilityD．usability