Recycling a thermoplastic polymer is possible, because ______ .
A.
different polymer chains in a thermoplastic are held together by relatively weak Van der Waals bonds which can be broken at relatively low temperatures
B.
thermoplastics are only lightly crosslinked in comparison to thermosets
【简答题】英汉互译。 1. 去购物 _____________________ 3. 衣服商店 _____________________ 5. watch TV _____________________ 2. 一条新裙子 _____________________ 4. Time to go to sleep. _____________________ 6. You're welcome! _____...