Faculty researchers should not make use of their students in the course of having their research.
Explanation: when faculty researchers make use if students from other classes, familiarity is first knocked out, so undue manipulation of result is minimized. Making use of students from the faculty's class room might make it look like the students are being force to be part of it, so in order to avoid these, it is better to employed students from other faculties where necessary.
i do believe the correct answer is the spread of chinese culture throughout asia and africa.good luck
this question does't support enough resioning to answer.