题目内容
小张通过成都站托运一批超限的货物，到达郑州站时发现延期10天，铁路需要向小张赔付一定的违约金。
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PubMed支持的检索规则包括以下哪些？
在PUBMED里“[AD]”是表示作者这个字段。
在PUBMED里布尔逻辑符可以大写也可以小写。
Complete the following sentences with the words given below. Change the form if necessary.precious, descendant, fortune, moral(1) American blacks are said to be the ____________ of African slaves.(2) He received a large ________ when his uncle died.(3) If you lose other people’s trust, you’ll lose something ________, something you may hardly get back.(4) _________ beauty ought to be ranked above all other beauty.
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