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第三十四条 单位以承包、承租、挂靠方式经营，承包人、承租人、挂靠人以发包人、出租人、被挂靠人名义对外经营并由发包人、出租人、被挂靠人承担相关法律责任的，发包人、出租人、被挂靠人为纳税人；其他情形下，承包人、承租人、挂靠人为纳税人。，更多细节参见safew官方版本下载
However, Koch never credited the Hesses for their discovery of bacteriological agar, perhaps because, at the time, he failed to recognize its importance. Even after he received the insight about agar from the Hesses, Koch stuck with gelatine for years. In 1883-84, during his first medical expedition to Egypt and India to investigate cholera, he tried and failed to grow the cholera bacterium on gelatine media in the hot climate of Cairo (despite using a half-open fridge for incubation), only succeeding in the colder winter of Calcutta.