in chemistry 在通常情况下，物质名词和抽象名词在表示一般概念(即泛指)时，不用冠词。但是如果物质名词和抽象名词表示某一特定内容(尤其是有一限定性定语修饰)时则可加冠词。
It does not matter if the applications includemedicine, engineering, food, energy, or it is just the interest in creating new molecules.Most discoveries in chemistry include the synthesis of new materials and everyday new compounds are created or found, and innovative preparation routes aretested....
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 收藏 ...
It does not matter if the applications include medicine, engineering, food, energy, or it is just the interest in creating new molecules.Most discoveries in chemistry include the synthesis of new materials and everyday new compounds are created or found, and innovative preparation routes aretested...
解析 C 解析: 考查句子成分。句意:我们在新建的实验室里上化学课。分析句子可知,chemistry在这里作谓语动词had的宾语,意为“化学课”。故选C。 答案:C 解析: 考查句子成分。句意:我们在新建的实验室里上化学课。分析句子可知,chemistry在这里作谓语动词had的宾语,意为“化学课”。故选C。
【答案】主语+谓语+宾语+状语【核心短语/词汇】chemistry n.化学;class n.课;science lab 科学实验室【翻译】我们在科学实验室上了化学课。【解析】分析句子和句尾的标点符号可知,句子为陈述句,而陈述句的句首一般为句子的主语,因此主语为we,其次是谓语had,谓语后为宾语our chemistry class,in the science lab表...
In the chemistry lab, one student performed the experiment, while his partner instead of joining him. A. observed B. stared C. involved D. indicated 相关知识点: 试题来源: 解析 A 本题考查动词词义辨析。解题要点:A项意为“观察”;B项意为“盯着看”和at搭配;C项意为“参与”;D项意为“...
In the field of chemistry, “pH” stands for ___. A. Power of Hydrogen B. Potential of Hydrogen C. Pressure of Hydrogen D. Presence of Hydrogen 相关知识点: 试题来源: 解析 B。“pH”是“Potential of Hydrogen”的缩写,即氢离子浓度指数。选项 A、C、D 都是错误的组合。反馈 收藏 ...
[translate] a( )he first heard of the name of the chemistry specialist 正在翻译,请等待... [translate] 英语翻译 日语翻译 韩语翻译 德语翻译 法语翻译 俄语翻译 阿拉伯语翻译 西班牙语翻译 葡萄牙语翻译 意大利语翻译 荷兰语翻译 瑞典语翻译 希腊语翻译 51La ...
百度试题 结果1 题目The chemistry lab is ___ the second floor. A. in B. on C. at D. under 相关知识点: 试题来源: 解析 B。“on the second floor”表示在二楼,是固定用法。反馈 收藏