The current test, there is a wide range of measures the performance of some students to measure specific subjects even though the students have read the book. Review the lesson won't be able to do the test.
The current exam This is the variety. Intended to measure student performance Some of the test subjects only Although the students were reading lesson could not test it.
The exam today which has a variety of exams Is to measure the effectiveness of students. Some test subjects, even though the students read, review lessons can't do.