We all admit that breaking a record is really fantastic．_________ , some challenges are not good for people’s health．A.ThereforeB.HoweverC.MoreoverD.Furthermore
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B解析句意：我们都承认打破记录是一件极好的事情，然而，有些挑战对人体不好。therefore “因此”；however“然而”；moreover“况且”；furthermore“况且”。