Side chain fluorinated epoxy resin was synthesized by laurylfluo-enanthol and bisphenol A epoxy resin.
摘要采用十二氟庚醇与双酚A环氧树脂接枝合成了侧链含氟环氧树脂。
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听力真题(第4辑) Amazon has just announced the purchase of the upmarket grocery chain Whole Foods for $13.5bn, but two years ago Facebook paid even more than that to acquire the WhatsApp messaging service, which doesn't have any physical product at all.
亚马逊公司刚刚宣布以135亿美元收购了高档杂货连锁店 “全食超市”,而就在两年前,脸书以更高
价格收购了 WhatsApp 信息服务,该服务没有任何
体产品。
新题型
听力真题训练—新闻报道