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【单选题】
某品牌手机销售商想了解顾客购买该品牌手机后的满意度,已知该品牌目前有四个型号的手机在销,则最好的抽样( )
A.
简单随机抽样
B.
分层抽样
C.
整群抽样
D.
等距抽样
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B.
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C.
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