两题英语选择题
Some___b___causeseriousdiseases.A.bacteriasB.bacteriaC.bacteriumD.bacteriums为什么选b,不选c...
Some ___b___ cause serious diseases. A. bacterias B. bacteria C. bacterium D. bacteriums为什么选b,不选c We need to start early. It's __b___ to the station. A. a three-mile B. a good three miles C. a three miles D. the good three mile 这题又怎么理解?
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