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【单选题】
下面关于戴维南等效电路的开路电压,叙述正确的是 ( )A.
是指一端口中独立电压源的源电压
B.
是指一端口开路时的端口电压
C.
是指一端口接负载时负载上的电压
D.
是指一端口内部指定端对间的电压
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反馈参考答案：
举一反三
【单选题】I asked her to drop me ______at the airport, but she stayed till I boarded the plane.
A.
in
B.
on
C.
at
D.
off
【简答题】I asked her to drop me ____ at the airport, but she stayed till I boarded the plane
【单选题】下列程序的执行结果是（ ）。 #include(iostream．h> #include classTestClass { public： intX，y； TestClass（ ）{x=y=0；} TestClass(inta，intb){x=a；y=b；} voiddisp（ ） { cout$amp; } }； voidmain（ ） { TestClasss1(2，3)； s1．disp（ ...
A.
x=2，y=2
B.
x=2，y=3
C.
x=3，y=2
D.
x=3，y=3
【单选题】I asked her to drop me ( )at the airport, but she stayed till I boarded the plane.
A.
off
B.
up
【单选题】I asked her to drop me ( )at the airport ,but she stayed till I boarded the plane.
A.
off
B.
in
C.
at
D.
toward
【单选题】I asked her to drop me ______ at the airport, but she stayed till I boarded the plane.
A.
from
B.
to
C.
over
D.
off
相关题目：
【单选题】I asked her to drop me ( )at the airport, but she stayed till I boarded the plane.
A.
off
B.
up
参考解析：
知识点：
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