再听录音或仔细阅读文本，并完成测验。Programming LanguagesStudent: Professor Martin, I just finished myJava assignment, but I still have some questions.Instructor: Sure, Andrew.Student: I’m having a hard time keeping all thelanguages straight. There are so many.Instructor: There are quite a few. Which ones areyou having trouble with?Student: All of them. I think it’s confusing to haveall these （1）.Instructor: I see where you’re coming from. It’s alot to learn.Student: But why are there so many differentlanguages?Instructor: The first reason is that it makesdeveloping （2）easier.Student: How is that?Instructor: The computer only understandscommands in （3）language, or （4）digits. Itwould take programmers a long time to writeprograms in binary format.Student: I see.Instructor: Instead, programmers use humanreadable （5）languages, like Java. Thatallows us to write programs faster than ever before.Student: I understand that. But why are there somany human-readable programming languages?Instructor: Some human-readable programminglanguages are more appropriate for certain kinds ofsoftware. Does that answer your question?Student: Yes. I guess that makes sense. Thanks.