Hi, I am Zhao Xin from Beijing. I just enrolled at The Open University last month. Now I'm a freshman at the School of Social Work. As a social work major, I can help take care of the homeless and sick people, talk to them and accompany them, do the cleaning and other house chores. I enjoy helping people and want to live a meaningful life. I love being a social worker. I used to look after the elderly at a nursing home when I was in middle school. It gives me a feeling of pride to bring happiness to others. I want to make a differencein the world. 操作提示:句子正确选择下拉选项框为“T”;句子错误选择下拉选项框为“F”。
1. Zhao Xin is studying in the Open University now.()
2. His major is marketing.()
3. He is looking after the elderly at a nursing home nowadays.()
4. He wants to change the world and make it better.()
5. He is proud of being a social worker.()
第1题:
2、在顺序结构表示的线性表中,删除第i个元素(数组下标为i-1),需要把后面的所有元素都往前挪一位,相应的语句是: for (___________ ) PtrL->Data[j-1]=PtrL->Data[j]; 其中空缺部分的内容应该是
A.j = i; j< = PtrL->Last; j++
B.j =PtrL->Last; j>= i; j--
C.j = i-1; j< = PtrL->Last; j++
D.j =PtrL->Last; j>= i-1; j--
第2题:
在顺序结构表示的线性表中,删除第i个元素(数组下标为i-1),需要把后面的所有元素都往前挪一位,相应的语句是: for (___________ ) PtrL->Data[j-1]=PtrL->Data[j]; 其中空缺部分的内容应该是
A.j = i; j< = PtrL->Last; j++
B.j =PtrL->Last; j>= i; j--
C.j = i-1; j< = PtrL->Last; j++
D.j =PtrL->Last; j>= i-1; j--
第3题:
已知关系R(H,I,J,K,L,M,N),函数依赖集F为{ HI→JM,HK→JL,HN→I,K→J,I→K },问:F的最小覆盖为_________。
A.{ HI→M,HK→J,HN→I,K→J,I→K}
B.{ HI→M,HK→L,HN→I,K→J,I→K}
C.{ HI→J,HI→F,HK→J,HK→L,HN→I,I→K,K→J}
D.{ H→M,I→M,HK→L,H→I,N→I,K→J,I→K}
第4题:
用氢卤酸分解酚醚时,是HI还是HBr好?为什么?
A.HBr好,因为HBr比HI酸性强,Br-亲核能力I-强。
B.HBr好,因为HBr比HI酸性弱,Br-亲核能力I-弱。
C.HI好,因为HI比HBr酸性强,I-亲核能力比Br-强。
D.HI好,因为HI比HBr酸性弱,I-亲核能力比Br-弱。
第5题:
下列代码运行时不会产生错误的是?
A.print 'Hi, I'm fine'
B.print "Hi, I'm fine"
C.print 'Hi, I'm fine"
D.print "Hi, I'm fine'
第6题:
10、用氢卤酸分解酚醚时,是HI还是HBr好?为什么?
A.HBr好,因为HBr比HI酸性强,Br-亲核能力I-强。
B.HBr好,因为HBr比HI酸性弱,Br-亲核能力I-弱。
C.HI好,因为HI比HBr酸性强,I-亲核能力比Br-强。
D.HI好,因为HI比HBr酸性弱,I-亲核能力比Br-弱。