问题
填空题
根据句意及所给首字母完成单词。
1.Their grandchildren l_____ in Australia.
2.I often v_____ my w
ebsite at the weekend.
3.How many emails do you s_____ every month?
4.Can you get i_____ on the Internet?
5.Do you know how to d_____ music?
6.Becky can’t play computer g_____.
7.How do you o_____ a new document?
8.His brother can't w_____ his homework on the computer.
答案
1. live
2. visit
3. send
4. information
5. download
6. games
7. open
8. write
，直线l：y=x+t交双曲线于A、B两点，△OAB的面积为S（O为原点），则函数S=f（f）的奇偶性为（）．