第15题: [单项选择]All the key words in the article are printed in______ type so as to attract readers' attention. A. dark B. dense C. black D. bold 参考答案:D 答案解析:D项“bold 大胆的;醒目的,粗大的”符合题意,如:a drawing done in a few bold lines(用几笔粗线条构成的画)。其他三项中,A项 dark 意为“黑暗的,深色的”,