当然，它也面临一些挑战：亚利桑那州整体医疗人才短缺，预计到2030年，还需要额外1941名初级护理医生；而且医院高度依赖Medicare，报销率低，也会影响对人才的吸引力。但总体来说，Sun City的吸引力，已经远超亚利桑那州的农村地区，属于中等偏上水平。
Without agar, countries could not produce vaccines or the “miracle drug” penicillin, especially critical in wartime. In fact, they risked a “breakdown of [the] public health service” that would have had “far-reaching and serious results,” according to Lieutenant-General Ernest Bradfield. Extracted from marine algae and solidified into a jelly-like substrate, agar provides the surface on which scientists grow colonies of microbes for vaccine production and antibiotic testing. “The most important service that agar renders to mankind, in war or in peace, is as a bacteriological culture medium,” wrote oceanographer C.K. Tseng in a 1944 essay titled “A Seaweed Goes to War.”3
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（四）调解民间纠纷，促进家庭和睦、邻里和谐、社区安宁；
2024年12月23日 星期一 新京报
analogous to a "stop payment" was usually possible.