下面三个选项中有一个与其他两个不同类,请把它选出来并将其序号填入题前括号内。(5)(1)A. baby B. brother C. town(2)A. east B. sound C. south(3)A. pancake B.elbow C. knee(4)A. date B. August C. March(5)A. lady B. straw C. king
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