送交者: HunHunSheng 于 2005-8-10, 10:54:12:
回答: don't be foolish. The cost of so called zero energy 由 skipper3 于 2005-8-10, 10:46:56:
And many people are conscious enough to
offer themselves as guinea pigs. Just like
many hybrid car drivers know they do not have any
real financial benefits for themselves