【单选题】【消耗次数：1】
5. As he is recovering, he has grown more confident and _______ about life.
①
pessimistic
②
positive
③
negative
④
interested
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相关题目
【判断题】
Ever since he arrived, he has been complaining constantly about the weather.
①
正确
②
错误
【单选题】
5. He gave no________that he was ready tocompromise.
①
eyes
②
show
③
indication
④
see
【单选题】
He always has a lot of _______ ideas in his mind , and sometimes we do not even know what he is thinking about.
①
novel
②
spoil
③
acceptable
④
additional
【单选题】
5. His father began to work ____he was seven years old.
①
as old as
②
as early as
③
as soon as
④
as much as
【单选题】
“ Has he seen this film ? ” “Yes. He _________ it several days ago.”
①
saw
②
has seen
③
had seen
④
was seeing
【多选题】
He has ______________ to be an engineer.
①
departed
②
decided
③
made up
④
made up his mind
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设总体<img class="jc-formula" data-tex="X\sim N(\mu ,{ \sigma }^{ 2 })" src="https://huaweicloudobs.ahjxjy.cn/E8F2D5F87079BEFD2BB1BD2BF1778651.png" style="white-space: normal; vertical-align: middle;"/>,<img class="jc-formula" data-tex="{ X }_{ 1 },{ X }_{ 2 },...,{ X }_{ n }" src="https://huaweicloudobs.ahjxjy.cn/64C73A71B67C1F4B44D486DBA9E6AFC5.png" style="vertical-align: middle;"/>为来自总体X的样本，则<img class="jc-formula" data-tex="\frac { (n-1){ S }^{ 2 } }{ { \sigma }^{ 2 } } " src="https://huaweicloudobs.ahjxjy.cn/77064885BFFA5D13667B657A7BD0ADAC.png" style="vertical-align: middle;"/>服从自由度为[填空]的<img class="jc-formula" data-tex="{ \chi }^{ 2 }" src="https://huaweicloudobs.ahjxjy.cn/5DAF7D88A01C640C42ED35658D47A190.png" style="vertical-align: middle;"/>分布。
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设随机变量X～U[0，2]，则E(X)=[填空]
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若D(X)=25，D(Y)=36，<img class="jc-formula" data-tex="{ \rho }_{ xy }=0.4" src="https://huaweicloudobs.ahjxjy.cn/5D486A9B923DC21CB7D8F95C5E5E4174.png" style="vertical-align: middle;"/>，则cov(X,Y)=[填空]
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什么是领导？
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如何理解个性？
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[填空]被称为研究组织内部人的行为的里程碑。
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组织中的沟通按信息传递的方向一般分为[填空]、[填空]和[填空]。
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[填空]是指个体在认知自己的职、责、权过程中缺乏明确性。
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什么是从众行为？