谷歌正式重返平板市场。Pixel Tablet 经过一年多的预热，于今天正式发布，售价为 499 美元（IT之家备注：当前约 3453 元人民币）。该平板将于今天（5 月 11 日）接受预订，6 月 20 日开始发货。

§ 172.345 Folic acid （folacin）. Folic acid （CAS Reg. No. 59–30–3）, also known as folacin or folate, may be safely used in food as a nutrient in accordance with the following prescribed conditions: （a） ...