单选题 The English vocabulary is known for a(an) ______ of words which are comparatively seldom used in ordinary conversations.
A. multitude B. altitude C. latitude D. platitude

【正确答案】 A
【答案解析】a multitude of大量的；altitude(海拔)高度，(地位、等级等)高等；latitude纬度，范围； platitude陈词滥调。