you have recently written the c_睦霖题库

单项选择题 you have recently written the code shown below: Hashtable emailAddresses = new Hashtable （　）; emailAddresses.Add ("Mia", "mia@ Certkiller .com"); emailAddresses.Add ("Andy", "andy@ Certkiller .com"); emailAddresses.Add ("Kara", "kara@ Certkiller .com"); You need to ensure that these e-mail addresses are stored in the Email.dat file so that you can load them again when the user restarts the application. What should you do?（）: A、; B、; C、; D、

正确答案：B
答案解析：
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