【多选题】关于并发调度下面说法不正确的是
A.
一个并发调度是正确的如果它和某个串行调度结果相同
B.
一个并发调度是正确的如果它和某个串行调度结果不相同
【简答题】Read the inspection report. Then, choose the correct answers. What is
the main idea of the article?A. The
damage that exists on the coaches. B. How the coaches became damaged. C. The types of passenge...
【单选题】关于并发调度下面说法正确的是( )
A.
一个并发调度是正确的如果它和某个串行调度结果相同
B.
一个并发调度是正确的如果它和某个串行调度结果不相同
【简答题】先进行 操作后进行σ xy 可以表示为 。( )
【单选题】在F[x]中,有f(x)g(x)=h(x)成立,若将xy代替x可以得到什么?
【单选题】Read the inspection report. Then, choose the correct answers. What is the purpose of this report?
A.
To give instructions for rail workers.
B.
To explain why a section of rail must be closed.
C.
To assess how successful several repairs were.
D.
To inform about the safety of an area of track.