回归系数检验指的是（ ）。

未分类题期货市场的定量分析，一般是指运用各种分析方法特别是统计和计量方法，只对期货品种、期货板块进行时间和空间的判断。（ ）

未分类题请阅读Passage 1，完成第小题。Passage 1The British Medical Journal recently featured a strong response to what was judged an inappropriately lenient reaction by a medical school to a student cheating in an examination.

未分类题According to the author， it is important to prevent cheating in medical schools because__________. 查看材料

未分类题What does the author say about the cause（s） of cheating? 查看材料

未分类题According to the author， what precautions should medical schools take to prevent students from cheating? 查看材料