difference表示影响时可数吗

　　There are no significant differences between the two groups of students.

　　这两组学生没有明显差别。

　　There's no difference in the results.

　　结果没有差别。

　　A few kind words at the right time make all the difference.

　　在适当的时候说几句体贴话效果迥然不同。

　　There is no difference between the two in quantitative terms.

　　两者在数量上毫无差别。

　　There is a fundamental difference between the two points of view.

　　这两个观点有根本区别。