【单选题】

Can authority be criticized In 【B1】 of the word, authority is not 【B2】 either out of respect or out of 【B3】 . In such countries children are not expected to 【B4】 their teachers in school and 【B5】 young scholars or 【B6】 industrial mean are hampered in technical research because they don’t feel free to 【B7】 with their superiors.Clever researchers may be considered too 【B8】 to have "any right" to present 【B9】 that are different from knowledge and wisdom of men of old ages.【B10】 , theAmerican is 【B11】 from childhood to question, analyze and search. School tasks are 【B12】 to encourage the use of a 【B13】 range of materials.

A、composition topic like "Write a paper 【B14】 the world’s supply of sugar" will send even 【B15】 in search of completely unfamiliar ideas. 【B16】 in the primary grades, children are taught to 【B17】 libraries, and to search for 【B18】 ideas of various sorts. 【B19】 the time they are 14, 15 and 16, many young scholars are marking original and 【B20】 contributions in all fields of science.
A、organize
B．use
C．clean
D．manage