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【单选题】
下列关于方法覆盖不正确的是 ________。A.
方法覆盖和方法重载都是定义相同方法名的方法，本质上是一致的
B.
方法覆盖只能发生在子类对父类的继承中
C.
方法覆盖充分体现了 Java语言的多态性
D.
方法返回值类型不同能实现方法覆盖
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【简答题】healthy energy weight spend born Corn, vegetables and fruits, which are ________ food, are good choices for daily meals.
【单选题】Corn, vegetables and fruits, which are ________food, are good choices for daily meals.
A.
oily
B.
healthy
C.
unhealthy
D.
harmful
【判断题】Both corn, vegetables, fruits, hamburgers and ice-cream are good choices for daily meals.
A.
正确
B.
错误
【简答题】已知A、B、C是中学化学的常见物质，它们在一定条件下有如下转化关系： （1）若A能使湿润的红色石蕊试纸变蓝；C为红棕色气体。则A转化为B反应的化学方程式为 。 （2）若D是金属，C溶液在贮存时应加入少量D，其理由是（用必要的文字和离子方程式说明） 。 （3）若D是一种常见的温室气体，A是一种强电解质且在水溶液中电离出的阴、阳离子均含有10个电子，固体C受热分解可得固体B，该反应的化学方程式是 。 ...
【简答题】Fill in the blanks with the proper forms of the words given below. healthy ; energy ;weight ;amount ; measure ; calories ;make sb. do sth ; instead of ; need sb. to do sth ; spend ......
【简答题】healthy energy weight amounts spend special independent absorbed started born 3.Corn, vegetables and fruits, which are ________ food, are good choices for daily meals.
【单选题】int a[]={45, 4 , 67, 23, 657, 787, 34, 52, 56};数组中a[5]的值为( )
A.
23
B.
45
C.
657
D.
787
【简答题】Corn,vegetables and fruits, which are ______food, are good choices for daily meals.
【简答题】翻译下列段落 To keep healthy weight, it is important to have the right amount of calories for your age. The calorie is the measure of how much energy food gives us. Doctor King says boys and girls need diff...
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