【单选题】【消耗次数：1】
以下对自定义异常描述正确的是（ ）
①
自定义异常必须继承Exception
②
自定义异常可以继承自Error
③
自定义异常可以更加明确定位异常出错的位置和给出详细出错信息
④
程序中已经提供了丰富的异常类，使用自定义异常没有意义
参考答案：
复制
纠错
相关题目
【单选题】
下列声明自定义函数selectNumber()正确的是( )。
①
function: selectNumber(){}
②
function selectNumber(){}
③
function=selectNumber(){}
④
function {selectNumber()}
随机题目
【单选题】
The audience waited in _____silence while their aged speaker searched among his note for the figures he could not remember.
①
respective
②
respect
③
respectful
④
respectable
【单选题】
It turned out that the children were not _____for the accident.
①
to blame
②
to be blamed
③
to be blaming
④
to have been blaming
【单选题】
Our country is trying to _____ the serious problems created by the environment al pollution.
①
comply with
②
cope with
③
cope to
④
comply to
【单选题】
As the train will not leave until one hour later, we _____ grab a bite at the snack bar.
①
may well
②
just as well
③
might as well
④
as well
【单选题】
_____ drills that have no real topic have to remain as they are.
①
Manufacture
②
Manipulative
③
Manipulate
④
Manifest
【单选题】
Dr. Park was accused _____the patient with overdose of sleeping pills so that the patient’s life was determined before the expected time.
①
of providing
②
with providing
③
to have provided
④
to provide
【单选题】
Of course, talking about something which affects them personally is _____motivating for students.
①
chiefly
②
correctly
③
currently
④
eminently
【单选题】
A well written composition _____ good choice of words and clear organization among other things.
①
calls for
②
calls on
③
calls up
④
calls off
【单选题】
At her word she stood up and walked away, stopping at the window to pull back the curtain and _____.
①
look round
②
look out
③
look up
④
look on
【单选题】
It _____to see so many children in that mountainous area cannot even afford elementary education.
①
pains her
②
makes her pain
③
is paining
④
is pained