题目内容
当对一个系统的动态方面建模时，通常有两种使用活动图的方式，它们是(16)。
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听力原文：M: Good morning, Miss Smith.
W: Good morning. Can I help you？
M: Yes. I want to borrow a book" Harry. Porter"
W: Let me check it for you. Yes, here you are.
M: Thank you. Here's my card. I wonder how long I can keep it？
W: You may keep it for two weeks. The book you've just borrowed is to be returned on May 18th.
M: What happens if I can't finish reading it in two weeks？
W: You can come here and renew it for another two weeks.
M: That's good. Thank you for your help.
W: Not at all. That's what I'm here for. Come again.
M: I will. Good-bye.
Where does the conversation most likely take place？
程序内部的文档不包括下述的(17)。
用以计算资产负债率、流动比率、速动比率等反映企业财务状况和清偿能力指标的报表是()。
一个大型信息系统必须有一个总体规划，这主要是因为(43)。
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