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【单选题】
有关类的说法,正确的是()A.
类具有封装性，所以类的数据是不能被访问的
B.
类具有封装性，但可以通过类的公共接口访问类中的数据
C.
声明一个类时，必须用public修饰
D.
每个类重必须有main方法，否则无法执行
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举一反三
【单选题】If you want to catch your flight, you’d better ____ for the airport right now.
A.
cut off
B.
cheer up
C.
set off
D.
settle down
【单选题】You’d better_________ his name, address and telephone number in your notebook before you forget them.
A.
pack up
B.
care about
C.
set up
D.
set down
【简答题】小题1: The doctor said that you are o_________, so you’d better have a healthy diet and try your best to lose your weight. 小题2: We must l______ the expense to what we can afford. 小题3:. Hearing that song...
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