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【单选题】
电路图如上图所示,各支路电压和相应的各支路电流之间采用一致参考方向,已知U2=-10V,U5=2V,U4=5V,则电压U1,U3,U6的值分别为( )。A.
-7V,-12V,-17V
B.
7V,-12V,-17V
C.
7V,12V,-17V
D.
7V,-12V,17V
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【单选题】I gave all the newspapers to them and left ____, though I didn't have ____ at that time. [ ]
A.
nothing; much
B.
nothing; many
C.
none; much
D.
none; many
【单选题】–How much salt did you put in the soup? --I’m sorry to say, _________. I forgot.
A.
none
B.
no one
C.
nothing
D.
No
【单选题】_________ where the sound lab _________?
A.
Has it decided; will built
B.
Is it decided; it built
C.
Has it been decided; will be built
D.
Will it be decided; will be built
【单选题】要修改原理图绘制的默认的单位系统,在需要在“参数选择”对话框选择( )标签
A.
General
B.
Graphical Editing
C.
Default Units
D.
Default Primitives
【简答题】____ a fine day, I decided to go for an outing. A) Being B) Having been C) It being D) How
【简答题】用玻璃电极测定溶液的 pH 值时,采用的定量分析方法是( )
【单选题】---______ beautiful overcoat you bought! --- Indeed, I liked it ______ much that I decided to buy it at once as soon as I saw it.
A.
What; so
B.
How; such
C.
What a; so
D.
How a; such
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