A cleanroom is an enclosed space within a facility, designed to control airflow, pressurization, temperature, humidity, and particulates.
Blower For Cleanroom Typically used in manufacturing or scientific research, a cleanroom is a controlled environment that has a low level of pollutants such as dust, airborne microbes, aerosol particles, and chemical vapors. To be exact, a cleanroom has a controlled level of contamination that ...
A clean room is a type of enclosed room or facility that is free from or resistant to any internal or external environmental contamination or hazard. Clean rooms are used in scientific research or the development of devices and equipment that require an environment that’s free of contaminants,...
What a clean room! Who ___it ?A. has cleaned B. is cleaning C. will clean D. cleaned 相关知识点: 试题来源: 解析 【答案】A 【解析】试题分析:句意:看!多么干净的房间啊!谁打扫的?结合语境可知下文描述的是现在已经完成的动作,故用现在完成时态,故选A。考点:时态点评:英语中的时态主要...
What a clean room !是正确的.这里主要涉及感叹句的知识:对名词感叹用what,对形容词或副词感叹用how.其结构如下:What (a/an)+adj.+n.+ 主语+谓动!How +adj./adv.+ 主语+谓动!如:What a beautiful girl she is !What fine weather it was yesterday !What happy children they are !How beautiful th...
Look! What a clean room! Who ___it ? A. has cleaned B. is cleaning C. will clean D. cleaned 相关知识点: 试题来源: 解析 A 【详解】句意:看!多么干净的房间啊!谁打扫的?考查现在完成时。根据“What a clean room!”可知,房间现在很干净,这是过去打扫房间对现在造成的结果,所以使用现在完成时...
Look! What a clean room! Who ___ it? A. is cleaning B. cleaned C. has cleaned D. cleans 相关知识点: 试题来源: 解析 C 【详解】试题分析:句意: 看,教室多么干净啊!谁打扫了它。句子用现在完成时,表示已经发生了的事情对现在造成的影响,故选C。 考点:考查现在完成时。反馈 收藏...
( ) Look! What a clean room! Who it?A. has cleaned B. is cleaning C. will clean D. cleaned 相关知识点: 试题来源: 解析 【题干分析】 What a clean room!提示打扫房间已经完成,并对现在造成影响,故用现在完成时。 【答案】 A.反馈 收藏 ...
B: is cleaning C: will clean D: cleaned 相关知识点: 试题来源: 解析 A正确率: 70%, 易错项: D翻译看!这么干净的房间!是谁打扫的? 本题主要考查现在完成时。题目中 Look! What a clean room 强调房间现在很干净,而“打扫”这一动作是发生在过去的。现在完成时和一般过去时都表示在过去完成的动作。...
解析 答案见上句意:看!多么干净的房间!Millie,谁打扫的?clean打扫,是一个动词。由句意“What a clean room”可知,房间已经打扫过了,这里强调过去的动作对现在的影响,应用现在完成时态have/has+过去分词。主语是疑问词Who,动词用单数。故答案为:has cleaned。