对流传热
参考答案：
流体中质点发生相对位移而引起的热交换。
手机银行和网银可以分别设置预留信息，共享转账和缴费限额（）
Questions 27～30
A. It has a tutorial supervision system. B. It has progressive ideas on education. C. Its professors are more interested in research. D. Its staff maintain a good relation with the students.
