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[主观题]
A thermosetting polymer like epoxy______ A．typically can not be recycled. B．usually involves the m
A thermosetting polymer like epoxy______
A．typically can not be recycled.
B．usually involves the mixing of two or more components which are then polymerized.
C．is relatively strong because molecules are crosslinked together.
D．can not be easily re-shaped after curing
E．all of the above
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