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【单选题】
实体类型Employee(职员)定义如下 public class Employee { public int id {get;set;} //编号 public string ename {get;set;} //姓名 public int age {get;set;} //年龄 public Department department {get;set;} //部门 } 实体类型Department(部门)定义如下 public class Department{ public int id {get;set;} //编号 public string dname {get;set;} //部门名称 public ICollection employees {get;set;} //职员 } 已知有Employee类的实体对象列表EmployeeList和Department类的实体对象列表DepartmentList,以下说法正确的是:A.
Department类中的employees属性是引用属性,不是导航属性
B.
Employee类中的department属性是引用属性,不是导航属性
C.
Department类定义中没有导航属性
D.
Employee类定义中没有引用属性
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反馈参考答案：
举一反三
【单选题】有以下程序 include＜stdio．h＞ include＜string_h＞ voidfun(char*W，intm) {chars，*p1，*p2； p1＝w；p2＝w+m-1； while(pl＜p2){s=*p1；*p1=*p2；*p2＝s；p1++；p2-；} } main( ) {1chara[]=“123456“； fun(a，strlen(a))；puts(a)； }
A.
116611
B.
161616
C.
65432l
D.
123456
【单选题】We still remember the moment when fire-men doveted their lives to save people's lives in the forest fire. The whole nation was ___ by the action.
A.
moved
B.
heard
C.
left
【单选题】The whole nation was __________ into profound grief when Princess Diana died in an accident.
A.
burst
B.
plunged
C.
got
D.
brought
【简答题】设ε1,ε2,ε3是欧式空间中的一组标准正交基,且(α,εi)=i, i=1,2,3, 则α=
【简答题】The
whole nation was _____ into profound grief when
Princess Diana died in an accident.A. accustomed B. plunged C. mission D. revive
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