5. In order to find out more information about this alarm system, one can _______.
举一反三
- There are following business statements for an information system:①A customer submit 0 or more orders;②An order can only be submitted by one customer. There are two classes in the system “Customer” and “Order”. For each instance of Order Class, there are ____ instance(s) of Customer Class; while for each instance of Customer Class, there are ____ instance(s) of Order Class. A: (1) 1 (2) 1 B: (1) 1 (2) 1 or more C: (1) 1 (2) 0 or more D: (1) 0 or more (2) 1
- Comparison is the process of examining two or more things in order to find out their __________.
- There are several ways you can find out about
- Let’s see ___we can find some information about the city.
- What kind of information can you find about your friends on Weibo?