Self Test Multiple Choice

(Answers):

  1. 2-1. a;

  2. 2-2. b;

  3. 2-3. b;

  4. 2-4. b;

  5. 2-5. b;

  6. 2-6. c;

  7. 2-7. b;

  8. 2-8. c;

  9. 2-9. a;

  10. 2-10. b

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