问题
单项选择题
决策支持系统是由()。
A.模型驱动的
B.数据驱动的
C.方法驱动的
D.人机对话驱动的
答案
参考答案:A
决策支持系统是由()。
A.模型驱动的
B.数据驱动的
C.方法驱动的
D.人机对话驱动的
参考答案:A
根据所给的调查表,用适当的词完成后面的短文。 | ||||||||||||||||||||
All students =100% Most students=51%~99% Some students=1%~50% No students=0% | ||||||||||||||||||||
Here are the results of students activity survey at No. 18 High School. 1 students do homework every day. 2 students do homework three or four times a week. 3 students do homework once a week. As for surfing the Internet, 4 students surf the Internet every day. 5 students surf the Internet once a week. Some students surf the Internet 6 7 8 9 a week. The results for "watch TW' are interesting. 10 . students watch TV every day. 11 students watch TV once a week. 12 students watch TV three or four times a week. |