【简答题】某请求分页系统采用固定分配、局部置换策略及改进型Clock页面置换算法,假定某进程执行过程中,分配获得3个物理块且依次访问页面序号(方括号内为访问方式,W表示写访问方式,R表示读访问方式)分别为0[R]、1[R]、3[R]、2[W]、1[W]、5[R]、4[R]、2[W]、3[R]、0[R](全程未采取任何预调页措施),则该进程执行页面访问过程中发生的缺页率为百分之( )【要求填写十进制数】。
【单选题】The relation 'is preferred to' between commodity bundles is just one example of a binary relation. Another example is the relation 'is a full brother of ' defined over the set of all human beings. Let...
A.
The relation R is reflexive, transitive, and complete.
B.
The relation R is transitive and complete but not reflexive.
C.
The relation R is transitive but not complete or reflexive
D.
The relation R is complete but not transitive or reflexive.
【单选题】In relation to the law of contract, which of the following statements in relation to damages is correct?
A.
Damages are not payable in relation to mental distress
B.
Damages to rectify a defect are still payable even if they are wholly disproportionate to the size of the breach
C.
An innocent party is required to take reasonable steps to mitigate their losses
D.
Damages in the form of a penalty clause are valid and enforceable
【单选题】I have a lot to say ______ that problem.