【单选题】()是指事务在运行至正常终止前被中止,这时恢复子系统应利用日志文件撤销此事物已对数据库进行的修改。
【单选题】如下对于字符串拼接有误的是()
A.
“life is short,””you need python.”
B.
“life is short,”+”you need python.”
C.
“life is short,” 2*”you need python.”
D.
“life is short,”+2*”you need python.”
【单选题】__________ seeing the damage he had done,the child felt ashamed.
【简答题】用YUV或YIQ模型来表示彩色图像的优点是什么?为什么黑白电视机可看彩色电视图像?
【单选题】如下对于字符串拼接有误的是( )
A.
“Life is short,”“you need Python”
B.
“Life is short,”+“you need Python”
C.
“Life is short,”2*“you need Python”
D.
“Life is short,”+2*“you need Python”
【单选题】______ seeing the damage he had done, the child felt ashamed.
【单选题】Linda felt someone ________ on her way home from work yesterday evening, and therefore she was frightened and looked back from time to time.
【单选题】对于字符串拼接有误的是( )。
A.
“Life is short, “ “you need Python.”
B.
“Life is short, “ + “you need Python.”
C.
“ Life is short, “ 2 * “you need Python.”
D.
“Life is short, “ + 2 * “you need Python.”