一、总应力分析法(p=0) 二、初期变形分析 使用不排水指标,计算出的结果是加荷瞬间或短期的应力与变形

1、每个We站点的标特征为什么? 2、多个Web站点共用一个P地址应该注意哪些问题？ 3、主机名称与主机头名称有什么区别与联系？

1.常温下O2是气体而硫是固体,从它们的结构加以说明。 2.比较O2与O3的性质和分子结构。 3.比较硫在固态、液态和气态的分子结构

典型习题解析 1图示直杆截面为正方形,边长a=200m,杆长L=4m,F=10k,材料密度 p=20k/m3.考虑杆的自重,计算1-1和2-2截面轴力,并画轴力图

§10-11 键联接和花键联接 (一)键联接分类介绍 (二)键的选择及平键的强度校核 (三)花键联接 §10-12 销联接

Case patient xxx, female, 35 years old Symptom: amenorrhea for47days; spot vaginal bleeding for days; sudden abdominal pain for 2 hours. Signs: Bp 12/8Kpa, P 120 times/min, abdominal tenderness and rebound tenderness(+); sharp pain on motion of the cervix

1、利用锁相环路实现解调。有关这种解调方法的内容将在 2、利用调频波的过零信息实现解调。因为调频波的频率是随调制信号变化的,所以它们在相同的时间间隔内过零点的数目将不同。当瞬时频率高时,过零点的数目就多,瞬时频率低时,过零点的数目就少。(讲义下册P59图6.2.15)利用调频波的这个特点,可以实现解调。例如BE1调制度测量仪

一、选择题(共10题20分) 1.2分(4182)4182p3和298K下,把Pb和Cu(Ac)2溶液发生的反应安排为电池,当获得可逆电功为91.84kJ时,电池同时吸热213.6kJ,因此该过程有:() ()△>0,△S>0 (B)△U0 (C)u>,<0 (D)△U<0,△S<0

How to Improve Your Spoken English literature: instrumental and integrative motivation. Instrumental motivation is one in which the learner desires to use the language as a tool to achieve some desirable ends. In contrast, an integrative motivation is one in which \learners may choose to learn a particular L2 because they are interested in the people and culture represented by the target-language group\(Ellis, 1997, p75). In various contexts, both motivations have proved important. Of course, students can have both types of motivation at the same time

Example 2: (p175-12) resistor, capacitor, and voltage source=100cos300n are all in series. If the average power dissipated by the resistor is 150W and the rms capacitor voltage is 10v, determine R and C