This was not the first time that microbiologists experienced problems with agar. A phenomenon called “The Great Plate Count Anomaly” baffled researchers in the early 20th century when they observed that the number of cells seen under a microscope didn’t match the actual number of colonies growing on an agar plate. Investigating this discrepancy, researchers found agar itself to be the culprit: when nutrient broths are heated with agar during boiling, harmful byproducts (hydroperoxide) can form due to the reaction of agar with phosphate minerals contained in the media. Researchers can avoid this by autoclaving agar separately from the nutrient broth, or by reducing the amount of agar used.
这条路精准契合了正定毗邻石家庄的区位特点，既为城市服务又“掏城市腰包”，在服务中发展自己，成功让正定“翻身”了。
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All of this brings me back to the question that's been haunting me since discovering the Dreamie: Is it ridiculous to spend $250 on an alarm clock/noise machine? At a different time in my life, I would have said yes without hesitation. But the current version of me, who knows what it's like to move through each day like a zombie because I'm sleeping so terribly, would begrudgingly disagree. As I pack up this review unit to ship it back, I'll also be putting in an order for my own so I can keep my cherished new sleep routine going.
回到最初的问题：德索托的理论是正确的，1990年代的改革也曾奏效，为何秘鲁仍然重新陷入危机？答案是：产权改革只是第一步，制度建设却是长期工程。改革让资产可以资本化，却没有解决更根本的问题——谁来持续保护这些产权？