这个过程也很漫长，持续到了上幼儿园的时候，大概1年左右。这一步现在看来，还是非常有必要的，非常好的缓解了孩子的分离焦虑。
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For instance, LGC is advising the UK government and working on DNA methods to identify foods containing the four insect species allowed for sale for human consumption.
Author(s): Zhiyuan Huang, Lidong Ma, Jianbao Zhang, Dongpeng Hua, Qing Zhou, Lei Yang, Ji-Jung Kai, Haifeng Wang