The dictionary ______ 80,000 words, ______ many technical terms.
A.is containing; includingB.contains; includesC.includes; containsD.contains; including在线课程D
include侧重包含者只是整体的一部分。contain指整体包含、含有、容纳。80000个单词是字典的全部内容，故第一空用contain；科技条款是其中部分内容，故第二空用include。又因为逗号后面为状语部分，因此用including。