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1 The 1960s saw a change in the form and content of movies，treating subjects that for so many years were considered taboo. A.unpleasant B.prohibited C.unethical D. worthless 2 Even a novel in which there is no narrator tacitly creates a picture of an author behind the scenes. A.theoretically B.purposely C.instinctively D.implicitly 3 The legislative filibuster is a parliamentary tactic designed to delay or prevent action by the majority. A.tradition B.rule C.observance D.maneuver 4 Tanning by the sun takes place because sunlight stimulates the skin to produce the pigment melanin. A.burning B.roasting C.browning D.scorching 5 Tempestuous times preceded the declaration of war. A.terrible B.turbulent C.trying D.temperate 答案：1B 2D 3D 4C 5B | 
