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【单选题】
偏相关系数与相关系数的区别在于A.
偏相关系数就是相关系数
B.
两个变量的偏相关系数是消除其他变量影响之后的相关系数
C.
偏相关系数与相关系数没有联系
D.
偏相关系数一定比相关系数更加客观
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【单选题】It Can be inferred from Para. 3 that at present ______.
A.
a country can never expect to reconstruct its debts
B.
a country can reconstruct its debt with the permission of IMF
C.
a country in default cannot reconstruct its debts without the permission of all of its creditors
D.
a country in default can reconstruct its debts by acquiring the permission of most of its creditors
【简答题】Put the following sentences from the text into Chinese. As she was about to walk into the elevator she noticed two men already aboard. Her hesitation about joining them in the elevator was all too ob...
【简答题】Translate the following sentece into Chinese: Her hesitation about joining them in the elevator was all too obvious now. Her face was flushed.
【单选题】In the section “Heifer International,” the statement a cow or goat can exceed a year’s income means _____ .
A.
a cow or goat costs more than an annual salary
B.
an annual salary is more than the cost of a cow or goat
C.
a cow or goat is better than getting an annual salary
D.
a cow or goat can earn you an annual salary
【简答题】The elevator was _____ of ______, so we had to walk to the 10th floor of the building.
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