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【简答题】
定义圆类Circle,该类在circle包中。 属性:圆半径radius;圆周率为 静态常量 ,值为3.141593。 方法:带参构造方法;求面积方法area();求周长方法perimeter()。 定义主类Demo,该类在test包中。 主方法中创建一个半径为8的圆,输出该圆的面积和周长。
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【简答题】0乘任何数都得0，0除以任何数都得0．______．（判断对错）
【简答题】— I haven’t finished my task yet. — You shouldn’t have watched the film last night, or you _______ it by now. A, need have finished B. may have finished C. should have finished ...
【简答题】0除以任何数都得0，任何数除以1的商都是任何数．______．（判断对错）
【单选题】A: Have you finished your homework? B:().
A.
No, I didn't
B.
No, I haven't finished
C.
No, I haven't
【单选题】听力原文：M: Have you finished that copy for the catalogue? W: Finished it? I haven't started it yet! M: But it's urgent! The client needs it this afternoon. We'll have a meeting. W: Well, I wish you'd tol...
A.
Friends.
B.
Boss and Secretary.
C.
Colleagues.
D.
Clerk and customer.
【单选题】When you have finished with that video tape, don't forget to put it in my drawer, _________?
A.
do you
B.
will you
C.
don't you
D.
won't you
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