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【判断题】
利用多个定时器串联可以实现较长时间的。( )A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】在父类中使用 public 定义的方法,则子类覆写该方法的访问控制权限必须是( )。
【单选题】It doesn't matter____you fail the exam. Keep on studying hard, and then you will succeed in the end. [ ]
A.
before
B.
unless
C.
if
D.
until
【简答题】在父类中使用public定义的方法,则子类复写该方法的访问控制权限必须是______________
【单选题】Keep on going and never , and then you will succeed. [ ]
A.
look up
B.
bump into
C.
throw away
D.
give up
【简答题】阅读理解 When I was a girl of 16, I met a common boy who would make jokes at you and then you would run after him and his guys and beat them up(打闹). After that first meeting, we kept on meeting and beatin...
【单选题】You will be getting married and having a family______and then you ll understand why parents want to protect their children.
A.
by and by
B.
in general
C.
at large
D.
at length
【简答题】定义材料类Material,包含: 私有的成员变量名称、单价(String name; double price;) 为数据初始化赋值的构造方法(带参); 封装上述两个成员变量; 公有的成员方法得到所有信息(public String toString()),相当于用友好的方式打印上述属性。 定义木材类Wood,继承自材料类。包含: 私有的成员变量颜色(String col;) 为数据初始化赋值的...
【单选题】Have faith ______yourself, be faithful ______your work and make every effort you can and then you are not far away from success. [ ]
A.
of; of
B.
in; in
C.
to; in
D.
in; to
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