Text 1
21. D a cause of undesirable behaviors
22. B learn from advertisers‘experience
23. A adequately probe social and biological factors
24. C occurs without our realizing it
25. Dquestionable
Text 2
26. C dishonoring.
27. A obtain protection from Vermont regulators.
28. A managerial practices.
29. B the mature of states‘ patchwork regulations.
30. B the authority of the NRC will be defied.
Text 3
31. A uncertainty and complexity.
32. A strict inspection.
33. B has been examined by the scientific community.
34. D scientific work calls for a critical mind.
35. D Challenge to Credibility at the Gate to Science.
Text 4
36. C unions have enlarged their public-sector membership.
37. D Public-sector unions seldom get in trouble for their actions.
38. B indirectly augmented.
39. C may be a barrier to public-sector reforms.
40. A disapproval.
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