调查对象 |
中学生 |
大学生 |
研究生 |
固定电话 |
85.37% |
97.32% |
94.52% |
移动电话 |
12.52% |
33.06% |
97.46% |
E-mail |
14.78% |
54.96% |
98.62% |
书信 |
31.71% |
30.57% |
28.12% | 结论:(1)___________________________________________________________________ (2)___________________________________________________________________ |