Which statements does C provide to construct loops?
A. if statement
B. if-else statement
C. while statement
D. for statement
E. do-while statement
查看答案
In a pretest loop, the condition being tested is evaluated at the end of the repeating section of code.
A. 对
B. 错
In the condition-controlled loops, the value of the test condition determines the execution of the repetition statements.
A. 对
B. 错
为了标记一个HTML文件,应该使用的HTML标签是()
A.
B.
C.
D.
下列选项中哪种图片格式不是网页中常用的()
A. .jpg
B. .png
C. .tif
D. .gif