题目：
选择题
What is a diagnostic test ?
- A. It is to sel＿ect as fairly as possible the best candidates for a limited number of places or jobs.
- B. It is to analyze a particular aspect of a particular language.The aim is to find out the strong and weak points of the class and of individual students.
- C. It is a competitive assesment.
- D. It is to tap global competence in a language.
答案：
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