【C13】A．exceptionB．objectionC．secretD．obstacle

Which of the following belongs to "intervening obstacles"？A．Severe famine.B．Personal facto

【C2】______A．openB．coveredC．secretD．improved

【C15】A．impulseB．objectionC．resistanceD．dissatisfaction

According the interviewee, which is an obstacle of the research？A．People with different ba

【C9】A．exceptionB．divisionC．differenceD．alteration

所有的异常类皆继承哪一个类？（)A java.io.ExceptionB java.lang.Th