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【简答题】
已知角α的终边经过点P（-5，12），分别求出sinα，ccosα，tanα的值．
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反馈参考答案：
举一反三
【单选题】We often that when other people do the same things as we do, they do them for the same reasons; but this assumption is not always reasonable.
A.
assume
B.
await
C.
analyze
D.
adopt
【简答题】在模型古典假定成立的情况下,多元线性回归模型参数的最小二乘估计具有线性、最小方差性、_______________。
【简答题】We often that when other people do the same things as we do,they do them for the same reasons;but this assumption is not always reasonable.
【单选题】Part II Vocabulary Activity ( 20 points , 2 Point for each) Directions : There are 10 unfinished sentences in this part. For each sentence there are four choices marked A, B, C and D. Choose the one t...
A.
consume
B.
doubt
C.
assume
D.
conceive
【简答题】Habit is any action that we have performed so often that it becomes something that we do almost without thinking. Some of them are thought to be bad habits. People spend countless hours and dollars ea...
【单选题】We often that when other people do the same things we do, they do them for the same reasons.
A.
resume
B.
assume
C.
assuption
D.
resumption
【简答题】多元线性回归模型参数的最小二乘估计具有线性性、无偏性和 _______
【单选题】自来水厂净化的主要步骤如下图所示,有关说法错误的是( )。
A.
步骤I可除去难溶性杂质
B.
X试剂可以是活性炭
C.
步骤III可杀菌、消毒
D.
净化后的水是纯净物
【单选题】We often that when other people do the same things as we do, they do them for the same reasons; but this assumption is not always reasonable.
A.
assume
B.
acquire
C.
assure
D.
addict
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