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44601
金属的同素异构转变会发生晶格转变,转变时不会产生内应力。
44602
碳溶解在γ-Fe中形成的置换固溶体称为奥氏体。
44603
铁素体因溶碳极少,固溶强化作用甚微,故力学性能和纯铁相近,表现为强度、硬度低,塑性、韧性好。
44604
机械混合物各相均保持自身原有的晶体结构,其力学性能介于各相之间,取决于各相的性能和比例,并且与各相的形状、大小、数量和分布有关。
44605
金属化合物是合金组元相互作用形成的,其晶格类型和晶格特征可以与合金某一组元相同。
44606
钢液为一个相,称为液相,但在结晶过程中液相和固态钢共存,此时,它们各是一个相。
44607
纯铁发生同素异构转变时,其晶体结构由体心立方变为面心立方时,金属体积保持不变。
44608
材料的强度越高,其塑性、韧性也越好。
44609
下列哪种铁碳合金组织硬度最高()。
44610
属于面向立方晶格的金属有()
44611
每个体心立方晶胞中包含有()个原子
44612
金属材料在载荷作用下抵抗变形和破坏的能力称为()
44613
材料刚度与()有关
44614
下列铁碳合金组织属于机械混合物的是()
44615
碳溶解在α-Fe中形成的间隙固溶体称为()
44616
属于体心立方晶格的金属是()
44617
面心立方晶格的晶胞包含()个原子?
44618
某金属零件有耐磨性要求,在选材时应优先考虑下列哪个力学性能指标?
44619
Catherine de Braganza, the Portuguese Infanta, is the first one to introduce tea to England.
44620
Chinese people balance their food according to the needs of body.
44621
Chinese people would like to have the mixed tea, always putting some sugar, milk etc.into their tea.
44622
What are the materials made of Chinese tea sets?
44623
Which of the following should you never do when drinking the afternoon tea?
44624
What are the drinking etiquette you should follow when you drink the afternoon tea?
44625
Which kind of tea is used in British afternoon tea?
44626
The Chinese dishes pay great attention to the fact that ingredients supplement each other.
44627
The reason why Westerners would like much meat is partly because of its pastoral and marine culture.
44628
The local dishes in Southeastern Guangxi are heavy in taste, thick in color, good at stewing and fond of being spicy.
44629
Guangxi cuisine is light, but not as light as Cantonese food; it is spicy, but not as spicy as Sichuan cuisine.
44630
Filling the stomach and bringing gastronomic pleasure are the two most important functions of eating in traditional Chinese culture.
44631
What elements are included in Chinese cuisine?
44632
Who is the Sage of Tea?
44633
Food in the Philippines is a fusion of Asian cuisine with many Spanish and European influences blended with Chinese.
44634
Laotian cuisine shares some parallels with neighboring Thailand and Cambodia, however, many dishes have their own unique, local twist.
44635
Vietnamese cuisine is often considered less oily and more healthy than other Southeast Asian cuisine.
44636
In the classical division, Chinese has seven major language groups, among which the Mandarin language group forms the largest group.
44637
Chinese language has a tree-like sentence structure.
44638
English is an intonation language(语调语言).
44639
Chinese language is a tonal language(声调语言).
44640
English tends to use abstract words.
44641
There are more function words in English than in Chinese.
44642
Shakespeare contributed a wealth of newly coined and/or borrowed English words.
44643
The year 1066 marked the dramatic transition to Middle English.
44644
Which of the following are the three Germanic tribes who invaded Britain during the 5th century AD?
44645
In the Middle English period, what are the three mainly spoken languages?
44646
What are the roots of English vocabulary?
44647
What tones does Chinese include?
44648
World English includes ()。
44649
British and American English are different in ()。
44650
The Mandarin group(官话)consists of a wide range of dialects in the (), (), and () regions.
44651
Chinese language is a member of the ()。
44652
How many years does the Chinese written language have?
44653
The most native speakers of English live in ()。
44654
English language is Subject-prominent, with a subject-predicate sentence structure.
44655
The Chinese language has a tree-like sentence structure.
44656
Chinese is a form-focused language with an emphasis on implicit coherence.
44657
Chinese language is a kind of alphabetic script.
44658
The English language is a member of the ()。
44659
The Zhuang languages are only spoken in Guangxi Zhuang Autonomous Region.
44660
What languages are spoken by people in Guangxi?
44661
Chinese characters, also known as Hanzi(汉字)are one of the earliest forms of written language in the world, dating back approximately five thousand years.
44662
Chinese language is a language without case, without tense, but with regular and irregular verbs.
44663
All foreigners think that Chinese is a difficult language.
44664
Languages in Southeast Asia are a good source of study for the diversity of the region, revealing the historical influences and the localization of said influences that make this region particularly interesting.
44665
Which are the members of the main languages in Southeast Asia?
44666
In 1588, England defeated the famous fleet Armada from ()。
44667
Old English was mainly derived from the dialects of ()。
44668
Greek philosophy started as a kind of naturalism as the distinction between mind and matter was clearly recognized that time, now called Materialism by some philosophers with a scientific basis.
44669
Westerners put more stock in social responsibility.
44670
Over the centuries, Western Philosophy has strongly influenced and been influenced by Western religion, science, mathematics and politics.
44671
Philosophical systems are never definitively proved false.
44672
Confucius is a great thinker and educator in the period of Spring and Autumn and Warring States and the founder of the Confucian School.
44673
Chinese people see the universe as an integrated unity.
44674
The Chinese character “天”not only means the physical existence of the universe, it also means the natural law.
44675
Both of Chinese and Western philosophies contribute to the respective culture of the two worlds.
44676
In the ancient world, the most influential division of the subject was the Stoics division of philosophy into ()。
44677
The characteristic oppositions continually recur in the diversity of philosophy, such as ()。
44678
What are the three major philosophy systems in the world?
44679
Ancient Greek philosophers Aristotle believed that natural matter is a mixture of four natural elements: ()。
44680
On the composition of nature, ancient Chinese philosophers believed everything in nature is composed of five elements, which includes () besides of gold.
44681
The Chinese character “天” not only means the physical existence of the universe, it also means the natural law.
44682
In Western philosophy, the individual does not need to compete with the universe and the society for personal interest.
44683
On the composition of nature, ancient Chinese philosophers believed everything in nature is composed of five elements, which include () besides gold.
44684
Western philosophy makes essential distinction between things and dualistic division of all things, such as:()。
44685
The basic thoughts of Confucius can be embodied in the following aspects:()。
44686
Chinese Philosophy refers to any of several schools of philosophical thought in the Chinese tradition, including ()。
44687
Who is the creator of the philosophy of Taoism?
44688
Indian Philosophy is considered by Indian thinkers to be a practical discipline, and its goal should always be to improve human life.
44689
Indian Philosophy(or, in Sanskrit, Darshanas), refers to any of several traditions of philosophical thought that originated in the Indian subcontinent, including Hindu philosophy, Buddhist philosophy, and Jain philosophy(耆那教哲学).
44690
Very broadly speaking, according to some commentators, Western society strives to accept the truth as given and is more interested in finding the balance.
44691
Throughout its long and varied history in the West, philosophy has meant many different things.
44692
As the Greek philosophical approach was made from man and society, the Greeks were able to lay the foundations of systematic social thought.
44693
The divisions of philosophy are probably best expressed by phrases that contain the preposition of—such as ()。
44694
一单色光通过偏振片P投射到屏上形成亮点,若将P以入射光线为轴旋转一周,发现在转动过程中屏上亮点的亮度不变;再将一块四分之一波片置于P前,然后再转动P,发现屏上亮点产生明暗交替的变化,由此,判定入射光是()
44695
一厚度为10m m的方解石晶片,其光轴平行于表面,放置在两正交偏振片之间,晶片的光轴与第一偏振片的偏振化方向夹角为450,若要使波长 60nm的光通过上述系统后呈现极大,晶片的厚度至少要磨去多少。
44696
在偏振化方向相互正交的两偏振片之间放一 1/4 波片,其光轴与第一偏振的偏振化方向成600角,强度为I0 的单色自然光通过此系统后 ,出射光的强度为多少?
44697
一束光强为I0 的自然光垂直穿过两个偏振片,且此两偏振片的偏振化方向成45°角,若不考虑偏振片的反射和吸收,则穿过两个偏振片后的光强I为()
44698
使一光强为I0 的平面偏振光先后通过两个偏振片P1和P2 .P1和P2 的偏振化方向与原入射光光矢量振动方向的夹角分别是 a 和90°, 则通过这两个偏振片后的光强I是()
44699
自然光垂直照射到两块互相重叠的偏振片上,如果透射光强为入射光强的一半,两偏振片的偏振化方向间的夹角为多少?如果透射光强为最大透射光强的一半,则两偏振片的偏振化方向间的夹角又为多少?
44700
一束光强为I0自然光,相继通过三个偏振片P1、P2、P3后,出射光的光强I = I0/8,已知P1和P3的偏振化方向相互垂直,若以入射光线为轴,旋转P2,要使出射光的光强为零,P2最少要转过的角度是()
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