单选题
After a few short but
interminable
seconds, U. S. Astronaut Neil Armstrong placed his foot firmly on the fine-grained surface of the moon. The time was 10.. 56 pm, July 20,1969.
【正确答案】
D
【答案解析】[解析] interminable意为“持续得过长的”。D选项：long意为“长时间的”，与画线的单词意义相符，如：The pupils have two long holidays every year．(学生们每年有两次长假。)句意：经过短暂而又漫长的几秒钟后，美国宇航员尼尔·阿姆斯特朗稳步踏在月球表面细细的尘土上。故选D。A选项：inseparable不可分的；B选项：fast迅速的；C选项：indelible擦不掉的，永久的。