8(a) The relative atomic masses of elements can be determined using a mass spectromete(i) Define the term relative atomic mass.(3___(i) Describe fully how positive ions are formed from gaseous atoms in a mass spectrometer(II) The following dat a were obtained from the mass spectrum...
The balance between the shapes and the sizes of the various elements makes it possible to obtain a rapid cooking time with good chewing qualities. FALIERO GRAVERINI
The bourgeoisie keeps more and more doing away with the scattered state of the population, of the means of production, and of property. It has agglomerated population, centralised the means of production, and has concentrated property in a few hands.The necessary consequence of this was political...
From the serfs of the Middle Ages sprang the chartered burghers of the earliest towns. From these burgesses the first elements of the bourgeoisie were developed. 我们的时代,一个充斥资本,物质的时代有一个显著的特点,他简单鲜明的划分出阶级,整个社会划分出了两个对立的敌对阵营:资产阶级和无产阶级。 资...
What is the origin of the oxygen we breathe, the hydrogen and oxygen (in form of water H2O) in rivers and oceans, the carbon in all organic compounds, the
作者对这本书的定位是21世纪的The Elements of Style. 因为是存货,我有点不太记得为什么买这本书了,忍不住怀疑是不是想买The Elements of Style但是买错了。读下来觉得质量还是可以,有种重新上了一遍高中语法课的感觉。确实是对一些比较刻板和传统的语法观念进行了挑战。作者是哈佛大学的心理学教授,但在语言方面...
China has great empathy with victims all over the world, and has done all it can to provide humanitarian aid in support of the international community’s endeavors to stem the pandemic. 当前,疫情在全球持续蔓延。中国为被病毒夺去生命和在抗击疫情中牺牲的人们深感痛惜,向争分夺秒抢救生命、遏制疫情...
It’s a grim inside joke among glacial archaeologists that their field of study has been one of the few beneficiaries of climate change. But while retreating ice and snow makes some prehistoric treasures briefly accessible, exposure to the elements threatens to swiftly destroy them. 冰川考古学家之...
怎么定义“能”很重要,但这点奥威尔、《经济学人》、威廉·斯特伦克(The Elements of Style 一书的作者,也提倡用主动语态)都没说清楚。 句法并无好坏之分,只有合适与否。是否合适,要看在相应语境下,是减轻还是加重了读者获取信息的负担。主动语态往往更简练,但如果不需要言明施动者,或使之晚些出场,则被动语态...
Theaspet ratio for nnn elements exceeds 100 to 1. 单元划分网格长宽比不合适。如果这些单元在不重要的区域(对结果肯定有些影响,影响大小取决于这三个单元的位置,在模型中的作用等),而且能计算,那就没问题了 16. 单元扭曲 123elements are distorted ...