【单选题】【消耗次数：1】
判定现象间有无相关关系的方法是（ ）。
①
编制相关表
②
计算相关系数
③
绘制相关图
④
进行定性分析
参考答案：
复制
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would have made
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will make
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Of course not
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By all means
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I’m afraid not
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ourselves
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himself
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myself
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herself
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rains
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will rain
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said
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told
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spoken
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talked
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to realize
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having been realized
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realizing
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recognized ?
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realized ?
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understood ?
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①
must give ?
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should have given ?
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talk
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lecture
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