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1.Loud noises can be annoying. A) hateful B)painful C)horrifying D)irritating 2.Human facial expressions differ from those of animals in the degree to which they can be deliberately controlled and modified. A) sufficiently B)noticeably C)intentionally D)absolutely 3.The Constitutions vague nature has given it the flexibility to be adapted when circumstances change. A) imprecise B)concise C) unpolished D)elementary 4.The expedition reached the summit at 10：30 that morning. A)top of the mountain B)bottom of the mountain C)starting point D)site 5.The latest census is encouraging. A) count B)statement C)agreement D)estimate 6.Academic records from otller instimtions often become part of a universitys official file and can neither be returned to a student nor duplicated. A)borrowed B)purchased C)copied D)rewritten 7.While serving in the Senate in the early 1970s，Barbara Jordan supported legislation to ban discrimination and to deal with environmental problems. | 
