According to the writer, part of chivalry is that ______.
A. the knight should return to his castle and live there
B. the knight should be valiant enough to marry the lady
C. the knight should keep his love for the lady in secret fill his death
D. the knight should only have a courtly love with the lady
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According to the author, "No Child Left Behind Law" is ______
A. objective in setting its goal
B. partial in its basis
C. useful in addressing reading issues
D. improving the reading scores of the students
多种信用风险组合模型被广泛应用于国际银行业中，其中()直接将转移概率与宏观因素的关系模型化。然后通过不断加入宏观因素冲击来模拟转移概率的变化，得出模型的一系列参数值。
A. CreditMetrics模型
B. CreditPorffolioView模型
CreditRisk+模型
D. CreditMonitor模型
The common etiquette observed by ail communities is to ______.
A. pay a compliment to beautiful women
B. respect senior citizens
C. keep fingers as clean as possible
D. foster romantic love for a lady
随机变量Y的概率分布表如下：
随机变量Y的方差为()。
A. 76
B. 16
C. 6
D. 68
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