NSMutableDictionary *mutableDic = [NSMutableDictionary dictionaryWithObjectsAndKeys:@"lisi",@"name",[NSNumber numberWithInt:20],@"age", nil]; <br/>[mutableDic setObject:@"89" forKey:@"num"];<br/>NSLog(@"mutableDic4 = %@“,mutableDic);<br/>控制台打印是: A: name = lisi;num = 89 B: age = 20;name = lisi;num = 89 C: age = 20;name = lisi D: age = 20
NSMutableDictionary *mutableDic = [NSMutableDictionary dictionaryWithObjectsAndKeys:@"lisi",@"name",[NSNumber numberWithInt:20],@"age", nil]; <br/>[mutableDic setObject:@"89" forKey:@"num"];<br/>NSLog(@"mutableDic4 = %@“,mutableDic);<br/>控制台打印是: A: name = lisi;num = 89 B: age = 20;name = lisi;num = 89 C: age = 20;name = lisi D: age = 20
My grandpa died（）. A: A.at the age of my 2 B: B.for 2 years C: C.when I was 2 D: D.my age was 6
My grandpa died（）. A: A.at the age of my 2 B: B.for 2 years C: C.when I was 2 D: D.my age was 6
My grandpa died ______ . A: A . at the age of 2 B: B . for 2 years C: C . when I was 2 D: D . my age was 6
My grandpa died ______ . A: A . at the age of 2 B: B . for 2 years C: C . when I was 2 D: D . my age was 6
My grandpa died _________. A: at the age of my 2 B: for 2 years C: when I was 2. D: my age was 6.
My grandpa died _________. A: at the age of my 2 B: for 2 years C: when I was 2. D: my age was 6.
有5个人，第5个人比第4个人大2岁，第4个人比第3个人大2岁，第3个人比第2个人大2岁，第2个人比第1个人大2岁，第1个人说他10岁。求第5个人多少岁。如果age(n)为第n个人的岁数，此函数可如下定义： A: 当n=1，age(n)=10当n>1时，age(n)=age(n-1)+2 B: 当n>=1，age(n)=age(n-1)+2 C: 当n=5，age(n)=10当n>=1，age(n)=age(n+1)-2 D: 当n=5，age(n)=2当n>=1，age(n)=age(n-1)+2
有5个人，第5个人比第4个人大2岁，第4个人比第3个人大2岁，第3个人比第2个人大2岁，第2个人比第1个人大2岁，第1个人说他10岁。求第5个人多少岁。如果age(n)为第n个人的岁数，此函数可如下定义： A: 当n=1，age(n)=10当n>1时，age(n)=age(n-1)+2 B: 当n>=1，age(n)=age(n-1)+2 C: 当n=5，age(n)=10当n>=1，age(n)=age(n+1)-2 D: 当n=5，age(n)=2当n>=1，age(n)=age(n-1)+2
下列代码的运行结果是（ ）int [ ]age1=new int[ ]{10,20};int[]age2=age1;age2[1]=30;Console.WriteLine(age1[1]); A: 0 B: 10 C: 20 D: 30
下列代码的运行结果是（ ）int [ ]age1=new int[ ]{10,20};int[]age2=age1;age2[1]=30;Console.WriteLine(age1[1]); A: 0 B: 10 C: 20 D: 30
[音频]When must children start school in North America？ A: Kingdergarten B: Grade one C: Age 7 D: Age 3
[音频]When must children start school in North America？ A: Kingdergarten B: Grade one C: Age 7 D: Age 3
When dose craniotabes occur in rickets ( ) A: 1 to 3 months of age B: 1 to 1.5 years of age C: 6 to 12 months of age D: 3 to 6 months of age E: 1.5 to 2 years of age
When dose craniotabes occur in rickets ( ) A: 1 to 3 months of age B: 1 to 1.5 years of age C: 6 to 12 months of age D: 3 to 6 months of age E: 1.5 to 2 years of age
在“学生-选课-课程”数据库中的3个关系如下：S（SNO, SNAME, SEX, AGE）；SC（SNO, CNO, GRADE）； C（CNO, CNAME, TEACHER），查找选修“不学C2”这门课程学生的学生名，若用关系代数表达式来表示为（ ）。 A: πSNAME，AGE(σCno≠‘2’(S∞SC)) B: πSNAME，AGE(S)－πSNAME，AGE(σCno='2'(S∞SC)) C: πSNAME，AGE(σCno≠‘2’(C∞SC)) D: πSNAME，AGE(σCno≠‘2’(S∞C))
在“学生-选课-课程”数据库中的3个关系如下：S（SNO, SNAME, SEX, AGE）；SC（SNO, CNO, GRADE）； C（CNO, CNAME, TEACHER），查找选修“不学C2”这门课程学生的学生名，若用关系代数表达式来表示为（ ）。 A: πSNAME，AGE(σCno≠‘2’(S∞SC)) B: πSNAME，AGE(S)－πSNAME，AGE(σCno='2'(S∞SC)) C: πSNAME，AGE(σCno≠‘2’(C∞SC)) D: πSNAME，AGE(σCno≠‘2’(S∞C))
※[21～22].(2).( )...※[19～20].(2).( )...※[21～22].(2).( )...※[19～20].(2).( )...[16～18]().(2)[16～18]().(2)※[13～15].(2)※[9～12].(2)[16～18]().(2)※[13～15].(2) A: A． B: B． C: C． D: D．
※[21～22].(2).( )...※[19～20].(2).( )...※[21～22].(2).( )...※[19～20].(2).( )...[16～18]().(2)[16～18]().(2)※[13～15].(2)※[9～12].(2)[16～18]().(2)※[13～15].(2) A: A． B: B． C: C． D: D．