题目内容：

    A few months after Wu Xingu was congratulated by teachers for graduating from the university, the 23-year-old has been making his dream of relieving tens of thousands of teachers in China from drowning in marking papers(改卷) a reality.

Yitiku, an online software system based on Wu’s idea, eases the workload of teachers by doing many of the functions that they did, such as selecting the test questions, forming an exam paper, and preparing exercises for the students.

The features of Yitiku may sound quite simple, but this idea won his company millions of dollars from China’s Internet giant Tencent in January. The unexpectedly successful fund raising story became a popular conversation starter among the people in the education business.

“I can say it’s quite an achievement for me and our company. As far as I know, I’m the first CEO born after 1990s that Tencent has invested (投资) in, and we are the first online education company they have invested in.” Wu Xingyu told China Daily.

Different from other online companies that treat students as clients (客户), Yitiku has chosen teachers as their focus. “ We make the work of teachers easy. Usually it takes two to three hours for them to prepare a new exam paper. Now it’s just three clicks.” said Wu. He is quite satisfied with the major feature of the software.

Sitting in his 10-square-meter office in Zhonguancun, a hub of innovation (创新) in Beijing, Wu looks confident and chatty when talking about his business. His fast-speed answers give people an impression that he has years of experience in the online education sector. The fact is that he had been putting most of attention in directing courses at an art college until about a year ago.

1.The best title for this passage might be .

A. 23-year-old wants to ease workload of teachers B. the achievement made by a boy born after 1990s

C. Yitiku, an online software system loved by teachers D. A 23-year-old surprises the China’s Internet giant

2.Yitiku has the following function EXCEPT .

A. designing test papers B. choosing the test questions

C. teaching the students D. grading papers

3.The underlined word “hub” in the last paragraph means .

A. special center B. small house

C. big market D. supermarket

4.What will be continued after the last paragraph?

A. Wu’s family background B. how Wu got the great idea

C. what Wu studied in an art college D. Wu’s experience in directing courses