第15题: [单项选择]Questions 26 and 27 are based on the following news. At the end of the news item, you will be given 10 seconds to answer the questions. The recordings that join the National Recording Registry are from ______. A. 1953 B. 1968 C. 19th century D. not mentioned 参考答案:C 答案解析:[听力原文] 26-27 Professor Longhair was an important part of the New Orleans music scene for decade
第16题: [单项选择]He cannot {{U}}discriminate{{/U}} between a good idea and a bad one. A. judge B. assess C. distinguish D. recognize 参考答案:C 答案解析:[解析] 句子意思:他分不清哪个是好主意,哪个是馊主意。distinguish:分辨,辨别,不用在进行时中,例如:Small children can't distinguish fight from
A. a bit B. a little C. too much D. a great deal 参考答案:B 答案解析:[考点] 固定搭配 [解析] not a little=no little意为“不少的;颇多的”;not a bit意为“一点儿也不”;too much意为“太多”;a great de
第35题: [单项选择]下列关于菲线性相关的计量系数的说法,不正确的是()。 A. 秩相关系数采用两个变量的秩而不是变量本身来计量相关性 B. 坎德尔系数通过两个变量之间变化的一致性反映两个变量之间的相关性 C. 秩相关系数和坎德尔系数能够刻画两个变量之间的相关程度 D. 秩相关系数和坎德尔系数能够通过各变量的边缘分布刻画出两个变量的联合分布 参考答案:D 答案解析:二者只能刻画两个变量之间的相关程度,无法通过各变量的边缘分布刻画出两个变量的联合分布。