.Written English is more or less the same in both British and American English the differ

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A. except for
B. except that
C. except
(答案→)D. besides
解析：考查近义词辨析。句意“英式书面英语和美式书面英语差不多一样，除了拼写上的不同。”except for是排除细节上的内容；except that加从句；except“除了”；besides“除了......之外还”。故选D。