北京某公司进口10辆日本汽车，货物到达天津口岸后，应直接向天津检验检疫局办理报检手续。（ ）
参考答案：对
宠物狗的牙齿分为[ ]
A．门齿、犬齿和臼齿
B．犬齿和臼齿
C．门齿和臼齿
D．门齿和犬齿
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.
