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根据情景1,回答问题 模拟试题1-1.jpg
1.Today is the Children’s Day. I’d like to give my son a gift. Can you give me some advice? 
2.What size of skirt is right for Jenny? 
3.What is the price for a skirt?
根据情景2,回答问题 
模拟试题1-2.jpg
  1. 1.Who will receive the invitation to a dinner party?
  2. 2.Where is the dancing party held?
根据情景1,回答问题 
模拟试题2-1.jpg
1. Could you recommend some Thai food for me?  
2. I’d like some dessert. What can I have?
根据情景2,回答问题
模拟试题2-2.jpg 
1. Could you tell me where the Time Cafe is?  
2. How long does it take from here to the flower shop? 
3. How can I get to the flower shop?
"

时,的(  )

"
将数学公式3.jpg写成 表达式,下面正确的是()
若要建立以下关系,错误的语句是( )
3.png
图中所示的频率特性是一个积分环节  
7.jpg
图示构件为T形截面,其形心轴最有可能的是(    )。
18.png
题图中 R-C 电路的幅频特性为
24.jpg
"根据情景1,回答问题 
模拟试题2-1.jpg
1. Could you recommend some Thai food for me?  
2. I’d like some dessert. What can I have?"
"根据情景1,回答问题 模拟试题1-1.jpg
1.Today is the Children’s Day. I’d like to give my son a gift. Can you give me some advice? 
2.What size of skirt is right for Jenny? 
3.What is the price for a skirt?"
"根据情景2,回答问题
模拟试题2-2.jpg 
1. Could you tell me where the Time Cafe is?  
2. How long does it take from here to the flower shop? 
3. How can I get to the flower shop?"
"根据情景2,回答问题 
模拟试题1-2.jpg
  1. 1.Who will receive the invitation to a dinner party?
  2. 2.Where is the dancing party held?
"
下图为一具有电阻-电感-电容的无源网络,求以电压 u 为输入,uc 为输出的系统微分方程式。
11.jpg
一阶系统结构图如图所示。   
1)确定闭环系统的传递函数及其时间常数;   
2)若要求调节时间ts=0.2s,待定参数应满足的要求。(取 5%的误差带,ts=4T )由结构图写出闭环系统传递函数
21.jpg
已知系统的结构图如图所示,其中 K>0,判断闭环系统的稳定性
29.jpg
某典型二阶系统的单位阶跃响应如图所示。试确定系统的闭环传递函数。
26.jpg
绘出此物体的CSG树。
6.png
作业单选1.png
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