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leexenglong
2 năm trước
Cho đồ thị hàm số y =ax đi qua điểm A(-3;1) a,Tìm hàm số a, từ đó suy ra hàm số b, Đồ thị hàm số trên có đi qua điểm B(3;2) ko? Vì sao
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Read the passage below and choose the best answer (A, B, C or D) to each question. In order to request telephone service in the United States, either call or visit your local telephone store. A sales representative will be glad to show you samples of the designs and colors available. Simply choose the design and color that you prefer, and leave your name, address, and employer’s name with the sales representative. Students with scholarships should provide their sponsor’s name instead of an employer’s name. A fifty dollar security must be paid prior to telephone installation, and may be made by check, cash, Master card, or Visa. On the date that your telephone is to be installed, a responsible person, such as an apartment manager, must be at home to unlock the door for the serviceman. 1. The purpose of this passage is................... A. to persuade B. to correspond C. to inform D. to entertain 2. According to this passage, who will install your telephone? A. A sales representative B. A serviceman C. A manager D. An employer 3. The author mentions all the following as steps for securing telephone service EXCEPT................... A. call or visit a telephone service B. leave information with a sales representative C. give the serviceman a key to your apartment D. pay a fifty-dollar security deposit 4. The word "samples" in line 3 most nearly means................... A. prices B. examples C. pictures D. catalog 5. We can infer from this passage that.................. A. there is more than one kind of telephone B. the person requesting telephone service must be at home when it is installed. C. students may not request telephone service D. credit cards may not be used to pay for security deposits

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