13 The AS score of CIE Examination Bureau can be combined with the A-level score twice. However, you cannot carry forward individual AS unit scores. 1。 Why is the upper limit of CIE merger 13 months? Because CIE is not a modular evaluation method. CIE expects A-level candidates to complete the course within two years. CIE allows a two-year study course to be evaluated in stages, which means that candidates can complete AS Level within a test series/year, and their AS scores can be combined with other scores, and complete A-level scores can be obtained within 13 months. In many cases, A-level papers assume that students know the contents of AS. If the merging interval of more than 13 months is allowed, it is not in the interests of candidates, because candidates will need a longer time span to study.