【单选题】【消耗次数:1】
My father [] the curtain a little lest I see him.
opened
drew back
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②  Who’s talking over there
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①  going the rounds of
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【单选题】 <img src=https://huaweicloudobs.ahjxjy.cn/FA66824620E67659783ADEAD1454232C.png style=vertical-align: middle;/>
①  <img src=https://huaweicloudobs.ahjxjy.cn/5D2EE36FC5C738A68D666F588B349020.png style=vertical-align: middle;/>
②  <img src=https://huaweicloudobs.ahjxjy.cn/D8CF52E811A5490B626BB994771ABFB0.png style=vertical-align: middle;/>
③  <img src=https://huaweicloudobs.ahjxjy.cn/DECF1CB1D406562C6BBB60496C03CFCB.png style=vertical-align: middle;/>
④  <img src=https://huaweicloudobs.ahjxjy.cn/9B16D424FEF786E452DB1312645FCC04.png style=vertical-align: middle;/>
【单选题】 有三个子女的家庭,设每个孩子是男是女的概率相等,则至少有一个男孩的概率是
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【单选题】 <img src=https://huaweicloudobs.ahjxjy.cn/4B3CBD8E164A9C33F1A235740345CBA4.png style=vertical-align: middle;/>
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④  0.7