Given： What is the result？（） ["Hello","Hello World","Compilation fails.","Hello World 5","The code runs with no output."]
磨损的三个主要特征：
简述分段模型的计算方法？
Which of the following is not a CRS Telephony or Media Subsystem?（） ["JTAPI ","Cisco Media ","VXML ","MRCP ASR ","MRCP TTS&e"]
导体的电阻不但与导体的（），（）有关，而且还与导体的（）有关。
File类与FileInfo类的主要区别是什么？
