问题 单项选择题

设α1,α2,α3,β为n维向量组,已知α1,α2,β线性相关,α2,α3,β线性无关,则下列结论中正确的是:

A.β必可用α1,α2线性表示
B.α1必可用α2,α3,β线性表示
C.α1,α2,α3必线性无关
D.α1,α2,α3必线性相关

答案

参考答案:B

阅读理解

Mother Teresa was born in Yugoslavia, on August 27th, 1910. She attended the government school near her home until she was eighteen. At that time, some doctors and nurses from Yugoslavia were working in India, and they often wrote to the school about their work. She decided to join them one day.

When she finished school, she went first to Britain. Then a year later she went to India, where she began to train to be a teacher. After training, she was sent to Calcutta, where she taught geography at a school and soon after became headmistress(女校长).

However, although she loved teaching, in 1946 Mother Teresa left the school and went to work in the poor parts of Calcutta. Later she trained to be a nurse in Panta, and then began her work helping the poor and comforting the dying in the streets of the city. Slowly, others came to help her, and her work spread to other parts of India.

Mother Teresa is now a well-known person. Many photos have been taken of her, as she travels the world to open new schools and hospitals in poor countries. In 1979, she was given the Nobel Peace Prize for the lifetime of love and service she has given to the poor.

小题1:What first inspired Mother Teresa to work in India?

A.Her visit to the poor parts of Calcutta.

B.Her visit to Britain after she left school.

C.The medical worker’s letters to her school.

D.The work of the nurse in the city of Panta.小题2:In which order did Mother Teresa do the following things?

a. Trained to be a nurse                        

b. Went to India.

c. Helped the dying.                          

d. Studied to be a teacher.

e. Went to Britain.                            

f. Worked as a headmaster.

A.b, a, c, e, d, f

B.b, f, a, d, e, c

C.e, b, d, f, a, c

D.e, a, b, c, d, f小题3:Mother Teresa gave up teaching because she wanted to ___________.

A.look after the poor.

B.travel to poor countries

C.build hospitals for the poor

D.train nurse to care for the poor小题4:Mother Teresa is now a famous person because she has ___________.

A.saved many poor people in India

B.helped to bring about world peace

C.helped to make India a more peaceful place

D.taken care of many poor people in the world

问答题 简答题