Biology is .A. science of lifeB. science of the lifeC. the science of the lifeD. the scien

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A. science of life
B. science of the life
C. the science of the life
(答案→)D. the science of life
解析：考查冠词。句意：生物学是生命之科学。结合语境可知本句中science科学是特指与生命有关的科学，故前面需加定冠词。本句中的life是泛指任何一种生命，life是抽象名词不可数，泛指不用冠词。所以选D。