一、填空 1、巴金原名(),字()“巴金”是他1929年发表中篇小说《》时的署名。 2、在沪、宁求学和养病期间,巴金与旅居美国的俄国()者爱玛·高德曼通信,极受鼓舞。他还翻译了()的论著《面包略取》(《面包与自由》)

一、原生动物门的主要特征 1、原生动物是动物界最原始、最低等、最微小、最 简单的单细胞动物。 绝大多数的原生动物是显微镜下的小型动物,最小的种 类体长仅有2—3um,例如寄生于人及脊椎动物网状内皮 系统细胞内的利什曼原虫(Leishmania),大型的种类 体长可达7cm,例如海产的某些有孔虫类

1、按节分布,数量多体部分布数量少 2、形态划一形态多样 3、与身体之间无关节身体之间有关节附肢不分节附肢分节 4、无肌肉附着有大量肌肉附着

一、圆口纲:(包括七鳃鳗、盲鳗等50多种) 1、原始性特征: (1)没有真正的上下颌。口为吸盘型,故称之无颌类。(是脊椎动物进化史中一阶段的代表。) (2)没有成对的附肢。只有奇鳍,无偶鳍。(是脊椎动物中唯一没有附肢的动物。) (3)终生保留脊索,没有真正的脊椎骨,只有一些软骨小弧片直立于脊索上方及神经管的两侧,是脊椎的雏形。 (4)脑的发达程度较低,内耳只有一个(盲鳗)或二个半规管(七鳃鳗)

一、爬行纲的主要特征: 1、具有陆上繁殖能力一体内受精、产羊膜卵 2、外部形态特点 3、皮肤特点 4、骨骼特点 5、肌肉特点 6、消化系统特点: 7、呼吸特点: 8、循环特点: 9、神经感官特点: 10、仍为变温动物,需休眠。 二、比两栖类更加适应陆上生活,较之进步的特点: 三、分类和举例:

1、全面熟悉和了解世界各国的法医学教育,其中着重熟悉日本、英国、德国、意大利、美国的法医学教育。 2、将中国的法医学教育与世界其它国家的法医学教育进行比较

We will start by studying the motion of a particle. We think of particle as a body which has mass, but has negligible dimensions. Treating bodies as particles is, of course, an idealization which involves an approximation. This approximation may be perfectly acceptable in some situations and not adequate in some other cases. For instance, if we want to study the motion of planets it is common to consider each planet as a particle

We have seen that the work done by a force F on a particle is given by dw =. dr. If the work done by F, when the particle moves from any position TI to any position T2, can be expressed as, W12=fdr=-(V(r2)-V(1)=V-v2, (1) then we say that the force is conservative. In the above expression, the scalar

Inertial reference frames In the previous lecture, we derived an expression that related the accelerations observed using two reference frames, A and B, which are in relative motion with respect to each other. aA =aB+(aA/ B)'y'' 22 x (DA/ B) 'y'2'+ TA/B+ X TA/B). (1) Here, aA is the acceleration of particle A observed by one observer, and

In this lecture, we will start from the general relative motion concepts introduced in lectures D11 and D12. and then apply them to describe the motion of 2D rigid bodies. We will think of a rigid body as a system of particles in which the distance between any two particles stays constant. The term 2-dimensional implies that particles move in parallel planes. This includes, for instance, a planar body moving within its plane