我国“天河一号”超级计算机的计算速度为2.507PFlops，这里PFlops的P代表10的15次方，那么该浮点运算速度为每秒钟（）。

(1)朋友小王考上中国科技大学，发邮件向他祝贺。 【Email地址】wanglili@163．tom【主题】祝贺 【内容】小王，祝你考上理想中的学校，努力!(2)打开HTTP：价NCRE 1JKS INDEx．HTML页面，浏览网页，点击进入“洋考试”栏目，打开“GRE考试简介”页面，并将页面以文本文件类型保存到考生文件夹下；再进入“新话题”栏目，打开“清华得名”页面，将页面以HTML文件类型保存到考生文件夹下。两个文件的名称分别为ncre1．txt、ncre2．html。 点击查看答案

听力原文：W: Hello, Roger? This is Ann.M: Hi, Ann. How have you been? And how's your new apartment working out?W: Well, that's what I'm calling about. You see, I've decided to look for a new place.M: Oh, what's the problem with your place now? I thought you liked the apartment.W: I do, but it's a little far from the campus. Do you think you could help?M: All right. So, what kind of place are you looking for?W: Well, I'd like to share an apartment with one or two roommates within walking distance of school.M: Okay, how much do you want to spend on rent?W: Oh, somewhere under $ 200 a month.M: Hmm. And anything else?W: Yeah, I need a parking space.M: Well, I know there's an apartment nearby. I'll drop by there on my way to class today.W: Hey, thanks a lot.M: No problem.What's the relationship between the man and the woman?A．They are teacher and student.B．They are friends.C．They are mother and son.

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