“What ___ used as chief building materials today” 是主语从句,“steel and concrete” 是表语。这里需要一个系动词,从选项看,is 和 has been 可供选择。因为这里表达 “什么被用作……”,是被动语态的结构,被动语态的基本形式是 “be + 过去分词”,所以这里不能用 has been(has been 是现在完成时的...
【题文】What are used as chief building materials today___(be) steel and concrete. (用所给词的适当形式填空) 相关知识点: 试题来源: 解析 【答案】 are【详解】 考查时态和主谓一致。 句意:今天用作主要 建筑材料的是钢和混凝土。 由are可知,句 子时态是一般现在时, 由“steel and concrete"可知, ...
when price controls, supply problems, and extraordinary demand in the United States fueled double-digit inflation gains—peaking at 20 percent in 1947—before subsiding at the end of the decade. Consumption patterns today have been similarly distorted, andsupply chains have been disruptedby the pande...
A tariff is a tax imposed by a government on goods and services imported from other countries that serves to increase the price and make imports less desirable.
Today, the world is undertaking the net-zero transition, an ambitious effort to reach net-zero emissions of CO2and reduce emissions of other GHGs. The goal of the transition is outlined in the Paris Agreement adopted at the United Nations in 2015: to limit global warming above preindustrial ...
what 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,是复数概念) . 再说,后面的building materials 也是复数形式. ...
百度试题 结果1 题目 34. 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 34. C 反馈 收藏
(This is the same way of thinking that is used with “%” and “ppm.”)Because strain represents a small value, micro strain is expressed with the prefix “µ” (micro, 1 × 10−6) as in “µST” or “µε.” We’re here to provide you with more details.Reach out today...
What is the moral of this story? The moral is that it doesn’t matter if your woman is pretty or ugly, smart or dumb. Underneath in all, she's still a witch. 这个故事主旨是什么?主旨是,无论你的女人是美丽还是丑陋...
It’s human nature to follow the pack, and it takes nerves of steel to stay in the game when everyone else is getting out. In business, a steady hand—and meticulous preparation—can help steer the ship through the storm intact.Read on to learn more about recessions and concrete steps ...