皮皮学，免费搜题
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【单选题】
采用纯粹偶然的方法从母体中选取样本的抽样方法是( )A.
简单随机抽样
B.
分层随机抽样
C.
系统抽样
D.
任意抽样
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
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【简答题】Section B Dialogue Listening
【简答题】Section B Dialogue Listening
【单选题】How much discount can Bella get?
A.
8% discount
B.
12% discount
C.
10% discount
D.
5%discount
【简答题】Section B Dialogue Listening
【简答题】Section B Listening Practice Directions: Listen to the audio clip and fill in the blanks. When I was a senior in high school, colleges called out my name. Every day I’d 1) _________ where to matricula...
【单选题】How much discount will you get if you buy Eurail Youth Pass?
A.
a discount of 10% on standard adult prices
B.
a discount of 20% on standard adult prices
C.
a discount of 23% on standard adult prices
D.
a discount of 50% on standard adult prices
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