Paper-cutting is a type of improvised art with powerful expression . ( )
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4. adopts “mortise and tenon” connection.
A. Dougong
B. Joist
C. Beam
The stages for shadow play performance were very ornate（华丽的）. ( )
3. Acupuncture can treat a wide range of health problems. ( )
There are several materials necessary to make paper-cuts except for .
A. red paper
B. a pair of scissors
C. a cutting knife
D. a camera
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