单项选择题

A．$39.
B．$35.
C．$4.
D．$5.
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单项选择题
If you can make something that is timeless, then its appeal must derive more from merit and less from fashion.
A．Y
B．N
C．NG
单项选择题
We learn from the first paragraph that two systems of automated highways______.
A．are being planned
B．are being modified
C．are now in wide use
D．are under construction
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