单项选择题

Have you ever stopped to think seriously how many of the things used in your everyday life are made by the hard work of thousands of people（）

A．你日常生活中所用的东西有多少是经过了成千上万人的辛勤劳动才做出的，你有没有停止对这个问题的认真思考
B．你是否曾经停下来严肃地想一想，你在日常生活中所使用的东西有多少是经过成千上万人的辛勤劳动才做出的
C．你有没有停下来认真地想过，你口常使用的东西有多少是经过了成千上万人的辛勤劳动才做出的
D．你有没有停下来认真思考，日常用品中有哪些是经过了成千上万人的艰辛劳动才做出的

<上一题目录下一题>

热门试题

单项选择题

Civil engineers of ancient times were intelligent enough to build entire cities, including（）

A．systems of pipes, bridges, and pyramids
B．pipeline systems, bridges and farmlands
C．water supply systems, bridges, and pipelines for cultivation
D．water supply systems, bridges and structures

单项选择题

The base, of Gizeh Pyramid is cited by the author as a perfect example of（）

A．exact measurement adopted by the designers
B．great scientific ability of the builders
C．permanent works of art and design
D．a very large square