填空题设y＝y(χ)由χ－＝0确定，则＝________．

填空题{{B}}Directions:{{/B}} Fill in each of the following blanks with ONE word to complete the meaning of the passage. Write your answer on the Answer Sheet. A teacher is someone who communicates information or skill so that someone else may learn. Parents are the{{U}} {{U}} 1 {{/U}} {{/U}}teachers. Just by living with their child and{{U}} {{U}} 2 {{/U}} {{/U}}their everyday activities with him, they teach him their language, their values and their manners. Information and skills difficult or teach{{U}} {{U}} 3 {{/U}} {{/U}}family living are taught in a school by a person{{U}} {{U}} 4 {{/U}} {{/U}}special occupation is teaching. Before 1900 it{{U}} {{U}} 5 {{/U}} {{/U}}widely assumed that a man was qualified to teach if he could read and write-and{{U}} {{U}} 6 {{/U}} {{/U}}qualified if he knew arithmetic. With modest{{U}} {{U}} 7 {{/U}} {{/U}}like these, it is no{{U}} {{U}} 8 {{/U}} {{/U}}that teachers had low salaries and little prestige. Literature and history frequently portray teacher{{U}} {{U}} 9 {{/U}} {{/U}}fools and ignoramuses. By the late 19th century, there were{{U}} {{U}} 10 {{/U}} {{/U}}that the starts of teachers was slowly{{U}} {{U}} 11 {{/U}} {{/U}}Great educators such as Mann and Henry Barnard, and innovative thinkers such as Dewey and Parker began to command a{{U}} {{U}} 12 {{/U}} {{/U}}that in a few decades had to some{{U}} {{U}} 13 {{/U}} {{/U}}permeated classrooms in the United States. Progress was more glacial than meteoric, however,{{U}} {{U}} 14 {{/U}} {{/U}}the last half of the century. In the 20th century the starts of teachers rose as the standards{{U}} {{U}} 15 {{/U}} {{/U}}their education rose. By 1950 the average teacher had an education that greatly exceeded that of the average citizen.

填空题若f'(x)=sinx+x+1，则f(x)=______

填空题=________.

填空题平行于平面5x一14y+2z+36=0且与此平面距离为3的平面方程为_____________．

填空题设矩阵A＝，B＝A2＋5A＋6E，则＝________．