the big bang theory

the big bang theory Pop Quiz

What did Leonard use to preserve Penny's snowflake?
Choose the right answer:
Option A He didn't say on screen.
Option B 1% solution of polyvinal acidal resin
Option C 1% dry ice 3% carbon monoxide 97% polytractic acid
Option D 99% solution of potassium sulfate
 robothor1111 posted hace más de un año
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