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题目 what ---used as chief building materials today ---steel and concrete.c.are are d are is 答案 选arewhat ARE used as chief building materials today如果变成陈述句,steel and concrete are used as chief building materials today, 主语一眼就看出是复数steel and concrete (钢筋和水泥是两种物质,...
ait helps to relieve the internal stresses,and makes the steel less brittle than before 它比以前帮助解除内应力,并且使钢较不易碎[translate] a9月27日时和袁小姐确认过单价是不包括配件8.0元 配件是2.7元,总共10.75元 When September 27 and Miss Yuan had confirmed the unit price including the fitting...
百度试题 结果1 题目What___used as chief building materials today___steel and concrete. A. have been . . . are B. is . . . are C. are . . . are D. are . . . is 相关知识点: 试题来源: 解析 答案:C
百度试题 题目 What ___ used as chief building materials today ___ steel and concrete. A.have been, areB.is, areC.are, areD.are, is相关知识点: 试题来源: 解析 C
ait is much shorter than a bolg 它比bolg短[translate] aYou are thirteen years old. 您是十三年。[translate] a[5] Price, L., Sinton, J., Worrell, E., et al. (2002) Energy use and carbon dioxide emissions from steel production in China. Energy, 27, 429-446. (5) 价格, L., Sint...
百度试题 结果1 题目What ___ used as chief building materials today __ steel and concrete. A. have been … are B. is … are C. are … are D. are… is 相关知识点: 试题来源: 解析 C. are … are D. are … is
automation of the process delivered cheaper pins and, no doubt, cheaper nails too. Sichel agrees: although the falling price of nails was driven partly by cheaper iron and cheaper energy, most of the credit goes to nail manufacturers who simply found more efficient ways to turn steel into ...
the airport you are arriving at and departing from. Here is an introduction to the terminals, transport options, services, and accommodations at Sydney Airport. Sydney Airport Overview Sydney Airport has been in continual operation for more than 100 years. Today, it is the busiest airport in ...