紧接着，涨价函像连锁反应一样铺开：万华化学宣布PA12全系列涨价5%-10%，巴斯夫全球范围上调塑料助剂价格最高达20%，中石油、中石化旗下企业聚乙烯、聚丙烯提价300至500元/吨。
In the human genome, homopolymers tend to occur more often in adenine and thymine runs than guanine and cytosine. There are are approximately twice as many nucleotides within A or T homopolymers (481 Mb and 484 Mb) than G or C (278 Mb and 279 Mb). This discrepancy is even more pronounced when looking at homopolymers longer than four nucleotides (c.f. Figure 1.5).
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2020年，新冠疫情暴发，口罩核心材料熔喷布的价格坐上了过山车：从2万元/吨涨到65万元/吨，又跌到15万元/吨，再反弹回50万元/吨。
A U.S. official said Friday that 2,500 more Marines with the 31st Marine Expeditionary Unit and the amphibious assault ship USS Tripoli were being sent to the Middle East, adding to the military’s largest buildup of warships and aircraft in the region in decades. The official spoke on condition of anonymity to discuss sensitive military plans.
С балкона многоэтажки в столице региона России свис человек и попал на видео14:55