设:y=|x-a|+|x-10|+|x-a-10|,其中0<a<10,则对于满足a≤x≤10的x值,y的最小值是______
A. 5
B. 10
C. 15
D. 20
E. 30
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The examiner asks the candidate about him/herself, his/her home, work or studies and other familiar topics. Example: hometown and foodQ1: Can we talk about your home town Tell me about the biggest industries in your town.Q2: Are there any things you dislike about your home townQ3: What kinds of foods do you like to eatQ4: What about dislike Are there any foods you don’t like to eatQ5: What do you think are the advantages and disadvantages of home-cooked meals
Questions 31-36 Do the statements agree with the claims of the writer In boxes 31-36 on your answer sheet, write YES if the statements agree with the claims of the writer; NO if the statements disagree with the claims of the writer," NOT GIVEN if it is impossible to say what the writer thinks about this. Finance for vertical farms should be made available from public funds.
Questions 37-40 For questions 37-40, complete each sentence with the correct ending, A-F. Write the correct letter, A-F, in boxes 37-40 on your answer sheet. A has continually reduced their effectiveness. B has resulted in a serious loss of biodiversity. C reduces their importance for farmers. D is a common cause of harm to farmers. E almost always necessitates the use of herbicides. F has led to a greater demand for cattle. The traditional practice of "slash and burn"
Questions 31-36 Do the statements agree with the claims of the writer In boxes 31-36 on your answer sheet, write YES if the statements agree with the claims of the writer; NO if the statements disagree with the claims of the writer," NOT GIVEN if it is impossible to say what the writer thinks about this. Recycling will be a key process for successful vertical farms.