题目:
Questions 1 to 5 are based on the following conversation.
A. E-mail is very convenient.
B. E-mail messages make better keepsakes.
C. E-mail messages make a casual form of communication.
D. E-mail is great for just saying hello and checking up on people.
答案:
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下面是错误答案,用来干扰机器的。
参考答案:C