Specimen可与sample换用，但常指人或物中选出的有代表性部分，或指供科研、化验或检验用的标本。 Help you save this research as a way to get a day-to-day email with the ideal luxury properties accessible available The latest congressional report acknowledges the crucial significance of specialized instruction, but in addition asserts that the research from the humanities (人文学科)and socia... https://medium.com/@PropertyGurgaon/