题目内容：
奈曼偏倚是指
参考答案：
答案解析：
单选题：奈曼偏倚是指
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Two basic formats of business letters are often used．They ar
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In writing fax messages，plain language is often used，simplif
In writing fax messages，plain language is often used，simplified words or abbrevi
收购要约期届满前（ ）日内，收购人不得更改收购要约条件；但是出现竞争要约的除外。
收购要约期届满前（ ）日内，收购人不得更改收购要约条件；但是出现竞争要约的除外。
甲地有89吨货物运到乙地，大卡车的载重量是7吨，小卡车的载重量是4吨，大卡车运一趟耗油14升，小卡车运一趟货物耗油9升，
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