这里meant 是mean 的被动语态。例(1)：主动语态： “Forthrightness” means what?被动语态： What is meant by “forthrightness”?例(2)：主动语态： Rita writes a letter.被动语态： A letter is written by Rita.例(3)：主动语态： 一辆车撞死了行人 被动语态： 行人被一辆车撞死...
4 (a) State what is meant by the term polarisation when applied to a wave.[1](b)Explain why only transverse waves can be polarised.[2](c)Some films released have enabled viewing in three dimensions (3D). This can be done using two superimposed polarised images on the screen. One of ...
(a) (i) What is meant by the term enthalpy change of hydration, △H_1°_(2)=30°(ii) Write an equation that represents the AHayd of the Mg2+ ion.(iii) Suggest a reason why AHfy a of the Mg2+ ion is greater than AHyd of the Ca2+ ion.(iv) Suggest why it is impossible to...
Physical properties are those properties which are natural in the material and cannot be permanently altered without changing the material itself, include: weight , [小题1] , thermal and electrical conductivity , rate of thermal expansion, and melting point.A...
百度试题 题目4. What is meant by the term "cohesion" in the study of texts? What "cohesion" is different from the term "coherence"相关知识点: 试题来源: 解析反馈 收藏
4 (a)Explain what is meant by the internal energy of a gas.[1](b) An ideal gas has a volume of 1.8×10-3 m3 at a pressure of 3.3×105 P a and a temperature of 37 C.(i)Show that the number of molecules in the gas is 1.4× 1023.[1](ii)The gas expands so that its v...
百度试题 结果1 题目(a) State what is meant by a gravitational field. bó 1...。[1] 相关知识点: 试题来源: 解析 Region of space in which a mass experiences a force 反馈 收藏
结果1 题目(c) What is meant by the term unsaturated hydrocarbon?unsaturated hydrocarbon 相关知识点: 试题来源: 解析 (contains) double bond/ triple bond/ multiple bond(s)/not all bonds are single(contains) carbon and hydrogen only 反馈 收藏 ...
字数:150字左右!大学水平内容:1.what is meant by "thinking positively?" 2.what is the connection between success and optimism?3.How can we keep an optimistic and positive attitude?必须包含这三条信息且内容连贯,内容可以自编, 2 写作文,要求:有些文采,不要有太多的语法错误(会用一些从句之类的句子...
(a) State what is meant by the specific latent heat of fusion (melting) of a substance.[2] 相关知识点: 试题来源: 解析 (a) energy/heat needed to change state of substance/melt(from solid to liquid at constant temperature/ melting point) per kg/per unit mass ...