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1 According to some observers, television has acquired a disquieting monopoly over peoples leisure time. A recent B business C noisy D troubling 参考答案: D 2 Professor Smith continued his research work and disregarded his colleagues advice. A ignored B deplored C explored D implored 参考答案: A 3 Before the development of movable metal type in the mid-fifteenth century, news was disseminated by word of mouth, by letter, or by public notice. A organized B requested C distributed D limited 参考答案: C 4 Corn, domesticated by the American Indians, was brought to Europe by Columbus. A trained B cultivated C implanted D reared 参考答案: B 5 Of all the wild dogs, none is more closely related to the domesticated dog than the wolf. A ordinary B tame C faithful D hunting 参考答案: B | 
