一、填空 1.五阶行列式中某项a1a2an1a,a3取正号,则s=_t 2.若 kx+y=0

一、M2S为主晶相； 二、理论化学组成为MgO57.3%,SiO242.7%,MgO/SiO2=1.34; 三、熔点1890℃，荷软1650-1700℃；

一、名词解释（每题 6 分，共 30 分） 1、中间清醒期 2、纵膈扑动 3、Wilm’s 瘤 4、盖氏骨折

一、(10分)已知系统的传递函数=2且初始条件为c()=1,()=0R(s)s2+3s+2试求阶跃输入r(t)=1(1)作用时,系统的输出响应()

复旦大学：《中国人口与发展》PPT教学课件_Lecture 2, 3 China's Fertility Transitions

1 Find F(s) if f(t) = (a)(t-3);(b)4t u(t-3); (c)4 cos to(t-3). 2 Obtain partial-fraction expansions for each of the following rational functions, and find the corresponding time functions:

3Newton's' rings牛顿环 equipment: microscope A-a lens of radius of curvature R B-an accurately plane glass plate Interference pattern:

Chapter Four High-level Programming Languages e Part 1 Notes to Text m Part4 Extensive Reading o Part 2 Word Study Part5 Notes to Passage s Part3 Practice on Text Part6 Practice on Passage

一、泵前中格栅 1.设计参数: 设计流量Q=2.6×104m3/d=301L/s 栅前流速v1=0.7m/s,过栅流速v2=0.9m/s

I. Choose the Correct Answer 1. Which statement is most correct? (C) (A)Uniform circular motion causes a constant force toward the center. (B)Uniform circular motion is caused by a constant force toward the center