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【单选题】
The correct statement about the path and loop of signal flow graph is（ ）
A.
A path or a loop can go through the same node more than once.
B.
A path or a loop can go through any node only once.
C.
Path and loop can be formed only along the direction of branches.
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参考答案：
举一反三
【判断题】Students’ prior knowledge about the reading topic can be activated by brainstorming activity. ()
A.
正确
B.
错误
【单选题】The incorrect statement about the signal flow graph is（）
A.
The branches of signal flow graph are unidirectional.
B.
The signal flow graph of a system is unique.
C.
A signal flow graph and its transposition have the same system function.
【判断题】It is beneficial to ask students to justify their answers in “true or false statements” activity. ()
A.
正确
B.
错误
【单选题】The signal flow graph of a system is shown as figure. The system function of this system is（）
A.
B.
C.
【单选题】A higher order system is implemented by the cascading or paralleling of several sub-systems. If we want the poles of the original system is same as those of the sub-systems, then we can adopt the（ ）
A.
cascading only.
B.
paralleling only.
C.
cascading or paralleling.
【单选题】A higher order system is implemented by the cascading or paralleling of several sub-systems. If we want the zeros of the original system is same as those of the sub-systems, then we can adopt the（ ）
A.
cascading only.
B.
paralleling only.
C.
cascading or paralleling.
【判断题】Drawing mind-map based on the text is one form of information transferring activity. ()
A.
正确
B.
错误
【单选题】If a second order LTI continuous system has step response as shown as figure, then the poles of its system function are（ ）
A.
two negative real poles.
B.
a pair of conjugate poles in the right half of the s complex plane.
C.
a pair of conjugate poles in the left half of the s complex plane.
相关题目：
【判断题】Students’ prior knowledge about the reading topic can be activated by brainstorming activity. ()
A.
正确
B.
错误
【单选题】The incorrect statement about the signal flow graph is（）
A.
The branches of signal flow graph are unidirectional.
B.
The signal flow graph of a system is unique.
C.
A signal flow graph and its transposition have the same system function.
【判断题】It is beneficial to ask students to justify their answers in “true or false statements” activity. ()
A.
正确
B.
错误
【单选题】The signal flow graph of a system is shown as figure. The system function of this system is（）
A.
B.
C.
【单选题】A higher order system is implemented by the cascading or paralleling of several sub-systems. If we want the poles of the original system is same as those of the sub-systems, then we can adopt the（ ）
A.
cascading only.
B.
paralleling only.
C.
cascading or paralleling.
【单选题】A higher order system is implemented by the cascading or paralleling of several sub-systems. If we want the zeros of the original system is same as those of the sub-systems, then we can adopt the（ ）
A.
cascading only.
B.
paralleling only.
C.
cascading or paralleling.
【判断题】Drawing mind-map based on the text is one form of information transferring activity. ()
A.
正确
B.
错误
【单选题】If a second order LTI continuous system has step response as shown as figure, then the poles of its system function are（ ）
A.
two negative real poles.
B.
a pair of conjugate poles in the right half of the s complex plane.
C.
a pair of conjugate poles in the left half of the s complex plane.
参考解析：
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