“中国是多边主义的坚定支持者。我希望世界能迎来一个更光明的未来，中国与联合国的紧密协作将为此提供坚实的保障。”博科娃说，她将继续做好中外友好使者，为中国在联合国框架内与世界各国交流互鉴贡献力量，“我期待看到中国开展更多教育、文化领域的国际合作，并以此增进信任、为其他领域的合作创造条件。”
“技防”还是不如“人防”
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Low_Calligrapher9499
Agar’s low viscosity also makes it easy to pour into Petri dishes, and its transparency permits observation of microbes growing on its surface.7 Also aiding in this is its low syneresis (extrusion of water from the gel), guaranteeing less surface “sweating”: Once a plate is inoculated, bacterial colonies stay in place and do not mix.