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1 hundreds of buildings were wrecked by the earthquake a) shaken hundreds of buildings were wrecked by the earthquake. a) shaken b) fallen c) damaged d) trembled 1. c。 wreck在句中用作动词， 其基本词义为破坏， 因此c是答案。 需要掌握的相关近义词词组： damagedestroywreck 毁坏 2. the use of the chemical may present a certain hazard to the laboratory workers. a)protection b)indication c) immunity d) danger 2.d. hazard作为名词使用时，其基本词义为危险， 危险的事情 ， 因此d是答案。 需要掌握的相关近义词词组： presentcausecreatebring aboutlead to 造成 hazardousdangerous 危险的 indicateshow - reveal 显示 be immune frombe free of 免于 3. the leading astronomers of the sixteenth and seventeenth centuries were fascinated by comets. a) intrigued b) infected c) inconvenienced d) inclined 3. a. fascinate的词义单一， 其基本词义为使着迷， 因此a是答案。 需要掌握的相关近义词词组： fascinateattractintrigue 吸引 4.the constitutions vague nature has given it the flexibility to be adapted when circumstances change. | 
