【单选题】关于实体关系模型,说法不正确的是( )。
【判断题】page 指令的 session 默认为 .fault 。( )
【简答题】The San Andreas fault is ______. A) an active fault system B) a place where earthquakes have been predicted accurately C) a place where earthquakes have been controlled D) the location of the Rocky Mo...
【简答题】Who should be responsible for the fault? ______should be responsible for the fault.
【单选题】四乙酸铅氧化醇时,当底物分子中( )有氢原子时,羟基易被氧化为醚,生成四氢呋喃衍生物。
【判断题】On a system with demand-paging, a process will experience a high page fault rate when the process begins execution.
【判断题】If the page-fault rate is too high, the process may have too many frames.
【单选题】关于实体关系模型,说法不正确的是______________。
D.
关系只能被显示定义,不可以在可视化过程中被逐步挖掘。
【单选题】The New Madrid fault is_____.
C.
a more serious fault than the San Andreas fault
D.
responsible for forming the Mississippi River