Which of the following is true about the basic word stock of English? ( )
A、The basic word stock has undergone almost no changes.
B、Words of the basic word stock are mostly polysyllabic words.
C、Words of the basic word stock constitute a large percentage of the English vocabulary.
D、The basic word stock has five characteristics, of which the most important is all national character.
【正确答案】：D
【题目解析】：本题考查基本词汇的特征。The basic word stock has five characteristics, of which the most important is all national character.句意：基本词汇有五个特征，其中最重要的是全民性。基本词汇的五个基本特征是全民性 (All-National character)、相对稳定性 (Stability)、能产性 (Productivity)、多义性 (Polysemy)和搭配性 (Collocability)。其中最重要的是全民性，因为它是讲这门语言的人所必不可少的。故D选项符合题意。
