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【单选题】
对于信号流图,不正确的说法是__________。A.
支路相当于乘法器
B.
阱节点是只有输入支路而没有输出支路的节点
C.
回路是指起点和终点在同一节点，并且信号通过每一节点的次数可以多
D.
节点变量的设置是任意的
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】What does the woman mean?
A.
She has bought a dress.
B.
She has made a dress.
C.
She has been given a dress.
【单选题】She is wearing a dress _______ silk. [ ]
A.
made from
B.
made of
C.
make from
D.
make of
【单选题】Busy as she was, she made ______ her duty to help her old neighbors.
A.
this
B.
that
C.
one
D.
it
【单选题】She ________ when she received her medical report.
A.
could help but to cry
B.
couldn’t help but crying
C.
couldn’t help crying
D.
couldn’t help to cry
【单选题】－I’m afraid that she won’t come to help me as she promised. －Don’t worry. Nothing will ______her mind if she has ______up her mind.
A.
change; made
B.
turn; done
C.
grow; given
D.
make; changed
【简答题】Where is the dress made? It is made in __________.
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