A. is B. was C. are D. were 相关知识点: 试题来源: 解析 D。本题考查一般过去时的被动语态。主语 the experiments 是复数,时间状语是 last week,所以要用 were done。A 选项 is 是一般现在时且主语是单数;B 选项 was 是一般过去时且主语是单数;C 选项 are 是一般现在时且主语是复数。反馈...
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当“class”表示“班级里的成员”时,谓语动词用复数形式;当“class”表示“一个整体班级”时,谓语动词用单数形式。本题中,“doing an experiment”表明是班级里的成员在做实验,所以谓语动词用复数形式“are”。A 选项“is”表示单数,不符合语境;C 选项“be”形式错误;D 选项“were”时态错误。
No abstract is available for this article.doi:10.1002/scin.5591680809KendaJeKarmenJohn Wiley & Sons, Ltd.Science News
9. the quick way is not to use any artificial fertilizers, ___(chemistry) sprays or dust. 10. we were told to keep all our sports ___(equip) in the lockers downstairs. 三. 根据括号内所给的提示翻译下列句子。 1. 他感觉到好好照顾他们是他的责任。(it作形式宾语) 2. 满足的人对拥有的...
百度试题 结果1 题目1. Doing _experiment in chemistry class is interesting. (experimental) 相关知识点: 试题来源: 解析 答案见上 反馈 收藏
少年谢尔顿第1季第2集台词 英文中文Look at him. Breaks my heart.你看他我心都要碎了Poor little guy, all alone.可怜的小...
Chemistry class is so interesting! We can see many instruments in the lab. What is used to hold liquids? A. test tube B. beaker C. flask D. petri dish 相关知识点: 试题来源: 解析 B。beaker(烧杯)是用来盛放液体的。test tube(试管)通常用于少量试剂的反应等;flask(烧瓶)一般用于加热反应...
In chemistry class, we learned that cinnamon is often used in experiments because of its ___. A. smell B. color C. property D. shape 相关知识点: 试题来源: 解析 C。本题考查对香料特性的理解。在化学实验中,肉桂常被使用是因为其特性,A 选项“气味”、B 选项“颜色”、D 选项“形状”不是其...
learning a new language.Also,some concepts(概念)of chemistry are hard to understand.However,with hard work and careful study,you can finish this subject successfully -and even enjoy it.Here are some suggestions to help you develop good study habits and better understand the t...