The result was not the same the professor had expected, was rather disappointing.A. as;

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(答案→)A. as; which
B. which; as
C. as; that
D. that; which
解析：A　考查定语从句。第一空，the same as为固定结构，意思为“与……一样”；“    was rather disappointing”为非限制性定语从句，关系代词指代前面整个句子的内容，故第二空应选which。