单项选择题

某次扔两颗骰子，则出现点数为偶数的概率为（）

A.1/2
B.1/4
C.1/3
D.1/6

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单项选择题

微分方程x2ydx+（x2y2+y2-x2-1）dy=0是（）

A.可分离变量的微分方程
B.齐次方程
C.一阶线性微分方程
D.伯努利方程

单项选择题

The phrase to urge people to abide by Christian doctrines and to seek salvation through constant struggles with their own weaknesses and all kinds of social evils ”may well sum up the implied meaning of （）.

A.Gulliver's Travels
B.The Rape of the Lock
C.Robinson Crusoe
D.The pilgrim's Progres

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