It is difficult for people in cities to get enough physical exercise. What are the causes and what solutions could be taken to solve the problem? Give reasons for your answer and include any relevant examples from your own knowledge or experience. Write at least 250 words. Task 2 报告类 社...
根据句子意思和音标、首字母提示填词, 每空一词。 1. —Dad, why do you have so much work and get back home so late every day? —I’m sorry, dear. Um, because we live in a [ˈbɪzi] society. 2.—The noise from the railway really [drəʊv] me...
language 语言;math 数学;history历史; physics 物理。故选 A。 07 C 解 :此句为定语从句,先行词students指人,且在从 句中作主语,用who引导。 故选C。 8 B :... as music is mathematical(学 ) with notes in order."可知,该空填 surprising。 故选 B。 9 C 解析:work together一起工作,此处指“...
physics25. A.why B. when C. who D. whose26. A. difficult B. surprising C. usual D. necessary27. A. think more B. study harder C. work together D. read more28. A. musical B. music C. musicians D. sports 相关知识点: 试题来源: 解析 19.C 解析:句意:首先,当我们不快 乐...
What part of the concept of acceleration is difficult to understand: the mathematics, the physics, or both? In this paper, details of student difficulties in understanding the concept of acceleration and the mathematical and physical/intuitive sources of these ar... Mehmet,Fatih,Taşar - Zdm ...
B Birckenstaedt,BF Kutter,F Zegler - American Institute of Physics 被引量: 3发表: 2007年 Propagation and Communications Problems in Space The problems of propagation and communications arising from landings on the Moon, Venus, or Mars are treated in terms of the characteristics required for t....
E.it is difficult to find a course to combine with workF.But the advantages of MOOCs for busy people today are obviousG.In fact, that seems to be one of the problems of this new way of studying 免费查看参考答案及解析 题目: 听下面一段较长对话,回答以下小题。【1】Why is Nick moving...
Atomic physics is important because it is applied during the study of gases, atmospheric science, and within the study of mechanisms of chemical...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your tough ...
Once in a physics class, the teacher asked his students, "Why do we have brakes(刹车) in our car?" A student got up and replied, "Sir, to stop the car". Another student replied, "To reduce and control the speed of the car". Another said, "To avoid collision (碰撞)."Soon, all...
And, it is this ``smallness'' that makes the determination of this (seemingly unrelated to the rest of physics) fundamental constant so difficult. Furthermore, because they are human, scientists want to get the ``right'' (read previously obtained) answer; and this goal can affect their ...