《苹果树上的外婆》中安迪与外婆玩船形秋千用的是什么颜色的游艺票？（）
A.红色
B.蓝色
C.黄色
D.绿色
参考答案：B
金俊自什么时候起可以委托辩护人人民法院在此有何义务
An analyst gathered the following information about two common stocks: · variance of returns for the Company E=15.5 · variance of returns for the Company F=22.3 · covariance between returns of Company E and Company F = 8.65 The correlation coefficient between returns for the two common stocks is closest to:（）
A. 0.025.
B. 0.388.
C. 0.465.
