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【多选题】
关于异常处理类Exception,下面那些描述是正确的:A.
public String toString()：该方法返回描述当前Exception类信息的字符串。
B.
public void printStackTrace()：该方法没有返回值，它的功能是完成一个输出操作，在当前的标准输出设备（一般是屏幕显示器）上输出当前异常对象的堆栈使用轨迹，即程序先后调用并执行了哪些对象或类的哪些方法，使得运行过程中产生了这个异常对象。
C.
Exception类有一个子类IOexception
D.
Public Stirng getMessage() //显示异常错误简短消息
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举一反三
【单选题】Ma Dong didn't write out the right answer, _____. [ ]
A.
neither did I
B.
neither didn't I
C.
I'm too
D.
either I
【单选题】听力原文：M: Didn't I tell you? I retired on Friday. W: Really! I didn't think you'd be retiring for another five years or so. M: Well. I'll be seventy then, you know. W: Well. I never! I thought you were ...
A.
In his fifties.
B.
In his sixties.
C.
Seventy.
D.
Seventy-five.
【简答题】最安全,经济的营养补给途径是
【简答题】A．warnings B．clues C．symbols D．evidences
【单选题】— I plan to go out for a trip, but I'm afraid I don't know the ______. — A map is helpful, I think. [ ]
A.
price
B.
way
C.
time
【单选题】According to the (literature) in this field, expert (evidences) originally (appeared) in England, and later (got widen used) in the Commonwealth countries.
A.
literature
B.
evidences
C.
appeared
D.
got widen used
【简答题】_____是相同类型的数据按顺序组成的一种引用数据类型。
【单选题】—I’m sorry, but I didn’t mean ____ out your secret. —But you know, letting out secret means ____ one’s feelings.
A.
to let; to hurt
B.
letting; hurting
C.
to let; hurting
D.
letting; to hurt
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