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【简答题】
沪科版九年级下册物理练考课时作业（二）答案
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参考答案：
举一反三
【单选题】运算放大器电路如图所示,输入电压 u i = 2V ,则输出电压 u O 等于 ( ) 。
A.
2V
B.
正饱和值
C.
负饱和值
D.
-2V
查看完整题目与答案
【单选题】同相比例运算放大器电路如图所示,输入u i 为有效电压为1V,R1和RF电阻分别为10KΩ和30KΩ,则输出的有效电压为( )V
A.
1
B.
3
C.
4
D.
5
查看完整题目与答案
【单选题】使用SQL命令不能创建的对象是( )。
A.
数据表
B.
窗体
C.
选择查询
D.
操作查询
查看完整题目与答案
【单选题】运算放大器电路如图所示 , 输入电压 u i = 2V , 则输出电压 u O 等于 ( ) 。
A.
2V
B.
正饱和值
C.
负饱和值
查看完整题目与答案
【单选题】运算放大器电路如图所示，输入电压U i =2V，则输出电压U o 等于（）
A.
2V
B.
正饱和值
C.
负饱和值
D.
-2V
查看完整题目与答案
【单选题】运算放大器应用电路如图所示，在运算放大器线性工作区，输出电压与输入电压之间的运算关系是( )。
A.
uo=10（u1-u2）
B.
uo=10（u2-u1）
C.
uo=-10u1+11u2
D.
uo=10u1-11u2
查看完整题目与答案
【单选题】听力原文：W: I really like these gloves. They look good as a gift for my niece, but I'm afraid they will not fit. M: Don't worry. It says one size fits all. Q: What is this woman worried about? (17)
A.
Her niece will think these gloves are old-fashioned.
B.
Her niece might not like these gloves.
C.
These gloves might not be her niece's size.
D.
These gloves are the wrong colour.
查看完整题目与答案
【单选题】听力原文：M: I think the logic course is very interesting, but it's very difficult. I'm afraid I can't get through the reading list. W: Don't worry, you'll find the time somehow. Why is the man worded?
A.
He has failed in the logic examination.
B.
He must read a lot of books set by his logic teacher.
C.
He can't get the books he needs.
D.
He is lagging behind his classmates in studies.
查看完整题目与答案
【简答题】先学习”零比特插入法“,再做对应习题:---- -请写出011111111111111111011111进行零比特插入法后的二进制位串。
查看完整题目与答案
【单选题】—Could you finish the task in three days? — _____.  I have something else to do these days. [     ]
A.
  I'm afraid so
B.
  I'm afraid not
C.
  Yes, I think so
D.
  I hope it
查看完整题目与答案
相关题目：
【单选题】运算放大器电路如图所示,输入电压 u i = 2V ,则输出电压 u O 等于 ( ) 。
A.
2V
B.
正饱和值
C.
负饱和值
D.
-2V
查看完整题目与答案
【单选题】同相比例运算放大器电路如图所示,输入u i 为有效电压为1V,R1和RF电阻分别为10KΩ和30KΩ,则输出的有效电压为( )V
A.
1
B.
3
C.
4
D.
5
查看完整题目与答案
【单选题】使用SQL命令不能创建的对象是( )。
A.
数据表
B.
窗体
C.
选择查询
D.
操作查询
查看完整题目与答案
【单选题】运算放大器电路如图所示 , 输入电压 u i = 2V , 则输出电压 u O 等于 ( ) 。
A.
2V
B.
正饱和值
C.
负饱和值
查看完整题目与答案
【单选题】运算放大器电路如图所示，输入电压U i =2V，则输出电压U o 等于（）
A.
2V
B.
正饱和值
C.
负饱和值
D.
-2V
查看完整题目与答案
【单选题】运算放大器应用电路如图所示，在运算放大器线性工作区，输出电压与输入电压之间的运算关系是( )。
A.
uo=10（u1-u2）
B.
uo=10（u2-u1）
C.
uo=-10u1+11u2
D.
uo=10u1-11u2
查看完整题目与答案
【单选题】听力原文：W: I really like these gloves. They look good as a gift for my niece, but I'm afraid they will not fit. M: Don't worry. It says one size fits all. Q: What is this woman worried about? (17)
A.
Her niece will think these gloves are old-fashioned.
B.
Her niece might not like these gloves.
C.
These gloves might not be her niece's size.
D.
These gloves are the wrong colour.
查看完整题目与答案
【单选题】听力原文：M: I think the logic course is very interesting, but it's very difficult. I'm afraid I can't get through the reading list. W: Don't worry, you'll find the time somehow. Why is the man worded?
A.
He has failed in the logic examination.
B.
He must read a lot of books set by his logic teacher.
C.
He can't get the books he needs.
D.
He is lagging behind his classmates in studies.
查看完整题目与答案
【简答题】先学习”零比特插入法“,再做对应习题:---- -请写出011111111111111111011111进行零比特插入法后的二进制位串。
查看完整题目与答案
【单选题】—Could you finish the task in three days? — _____.  I have something else to do these days. [     ]
A.
  I'm afraid so
B.
  I'm afraid not
C.
  Yes, I think so
D.
  I hope it
查看完整题目与答案
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