13. _________ the percentage of individuals with similar traits in succeeding generations, geneticists use the theory of probability. The calculation of To calculate Is calculating Calculated 答案是B,但為什麼不能用D呀? 4. Perhaps the most significant postwar trend was the decentralization of cities throughout the United States, _________ when massive highway-building programs permitted greater suburban growth. and accelerated a phenomenon a phenomenon that accelerated accelerating a phenomenon which, the acceleration of which phenomenon 答案是B,那C錯在哪呀? 還有這個句子的主詞動詞分別在哪呢?
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