“I have a lot of homework in Chem.” What does “Chem” stand for? A. Chemistry B. Chemical C. Chemist D. Chemically 相关知识点: 试题来源: 解析 A。“Chem”通常是“Chemistry”的缩写。选项 B“Chemical”是形容词。选项 C“Chemist”是化学家。选项 D“Chemically”是副词。
―What do you think of chemistry? ―In my opinion, chemistry is ___ physics.A. subject so difficult as B. as difficult a subject as C. as a difficult subject as D. difficult as a subject as 相关知识点: 试题来源: 解析 B 反馈 ...
thatlightcandamageoureyesundercertaincircumstances,there?snoscientificevidencesuggestingthatbluelightisharmfultooureyes.But manypeoplestillthinkitis,whichiswhybluelight-blockingglassesaresopopular.Sodothe glasseswork? “Everyoneisveryconcernedthatbluelight maybecausingdamagetotheeye,butthere?sno evidencethatitmaybeca...
In a chemistry experiment, you need to transfer a small amount of liquid. What tool can you use? A. ruler B. compass C. test tube 相关知识点: 试题来源: 解析 C。在化学实验中,需要转移少量液体时可以用试管。尺子是用来测量长度的。圆规是用来画圆的。
“In the field of chemistry, pH is an important concept. What does pH stand for?” A. Potential of Hydrogen B. Power of Hydrogen C. Property of Hydrogen D. Proportion of Hydrogen 相关知识点: 试题来源: 解析 A。pH 是 Potential of Hydrogen 的缩写,意为“氢的电位”。选项 B“Power of ...
Key Takeaways: Mole in Chemistry The mole is anSI unitused to measure the amount of any substance. The abbreviation for mole is mol. One mole is exactly 6.02214076×1023particles. The "particles" could be something small, like electrons or atoms, or something large, like elephants or stars....
Chemistry is all around us in our daily lives. It explains why food cooks, cars run, and plants grow. By studying chemistry, we learn how things work at a microscopic level. From the smallest atoms to large molecules, chemistry helps us understand the building blocks of the world. ...
试题来源: 解析 26.C【解析】考查代词。句意:—我没发现这本书有任何有趣的地方。——那这本关于化学的书怎么样?我相信你一定会喜欢它的。后者给前者推荐其他书看,由此可推测,前者应该是觉得原来的那本书没意思。nothing“没有什么”,符合语境。 反馈 收藏 ...
这题选哪个答案A:What do you think of chemistryB:in my opinion,chemistry is ___ physics.a.a subject so difficult as b.a subject as difficult as c.as a difficult subject as D.difficult as a subject as这题选择哪个答案?a 和b 有什么区别? 答案 B A只能用于否定句相关推荐...
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...