题目内容
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[主观题]
Which one is NOT true about the waterbeds？A．They can be heated by electric mat or infrared
Which one is NOT true about the waterbeds？
A．They can be heated by electric mat or infrared lamps.
B．They are made from tough plastic membrane.
C．They are the best choice in the scientific test.
D．They are much safer for the piglets but hard to control.
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