单选题Which of the following photovoltaic material is more expensive according to the passage?ANano-based.BCarbon-based.CCrystal-based.DSilicon-based.
单选题
Which of the following photovoltaic material is more expensive according to the passage?
A
Nano-based.
B
Carbon-based.
C
Crystal-based.
D
Silicon-based.
参考解析
解析：
录音中提到carbon-based solar cells（碳基太阳能电池）的价格只是silicon-based versions的十分之一，而生产hybrid nanorod polymer composite就像生产廉价的层压塑料一样，可见silicon-based photovoltaic material比较昂贵，因此选D。
录音中提到carbon-based solar cells（碳基太阳能电池）的价格只是silicon-based versions的十分之一，而生产hybrid nanorod polymer composite就像生产廉价的层压塑料一样，可见silicon-based photovoltaic material比较昂贵，因此选D。
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