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.
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。关于这个话题，搜狗输入法2026提供了深入分析
公式中成本利润率为10%，国务院税务主管部门可以根据行业成本利润实际情况调整成本利润率。
2.1 深度思考（Deep Thinking）：复杂逻辑推理
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