完形填空。从A、B、C、D四个选项中选取最佳答案。

    Bill is my friend. He has a happy 1. His father works 2 a hospital (医院) in Beijing. He usually  3 two eggs and a glass of milk 4 breakfast and then goes to work by car. His mother is an English 5 in our school. For breakfast, She usually eats some 6. Her English class is very  7, So we all love her. Bill is also my classmate. He eats a hamburger and two bananas for breakfast. He likes ice-cream very much. 8 his mother doesn't want him to eat it. She says it is not 9. And he can be very 10 if(如果 ) he eats a lot(很多).

所有的半径都相等，所有的直径也都相等。

名著阅读。

    他短小臃肿，外表结实，生就运动家般的骨骼，一张土红色的宽大的脸，到晚年皮肤 才变得病态，耳聋，额角隆起，宽广无比。乌黑的头发，异乎寻常的浓密，好似梳子从未 在上面光临过，到处逆立，赛似“梅杜萨头的乱蛇”。

关于辽对金战争性质的叙述，正确的是(    )​