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...
mean 意味着，意思是 be meant 这里是个被动语态，一般会出现在问题中 : by 后可接名词性结构What do you mean by ...是你不明白对方为何要做某事或为何这样说,询问意思或意图的句型,比如说 what do you mean by beauty?望采纳 谢谢 ...
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...
attitudestowardstexting.D.Tosuggesttherightuseofpunctuationmarks.( )6.WhyisJuanAbenanteRinconmentionedinthetext?A.Tomakeassessmentsontherecentstudy.B.Toconfirmthefindingsoftherecentstudy.C.Toputforwarddoubtsabouttherecentstudy.D.Toshowgreatoppositionfortherecen... ...
百度试题 结果1 题目(a) State what is meant by the moment of a force. 相关知识点: 试题来源: 解析 tuming effect OR force x distance (between force and pivot) 反馈 收藏
相关知识点: 试题来源: 解析 在波的上下文中,位移是指介质中的粒子从其平衡位置移动的距离。 在波的传播过程中,介质中的粒子会围绕其平衡位置振动。位移指的是粒子在某一时刻偏离其平衡位置的距离,可以是正值或负值,取决于粒子相对于平衡位置的位置。反馈 收藏 ...
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
2 (a) Explain what is meant by the following terms when used in the context of forces.(i) Centre of gravity The point of a body through which the entire weight of the body appears to act. [1] (ii) Friction The force between two surfaces that opposes relative motion between them.[1...
6.1(i) The glass core is surrounded by a plastic cladding.State and explain which material has a higher refractive index and explain your answer..[2](ii)The light ray enters the air-glass interface at 45°.Calculate the angle of refraction in the glass core.angle of refraction =...[2]...
2 (a) (i) State what is meant by the moment of a force about a point...[1](ii) Fig. 2.1 shows a large crane on a construction site lifting a block of mass 14000 kg.operator's cabin20m AB counterweight block Fig.2.1Calculate the moment about A due to the 14000 kg block su...