【单选题】物流系统的要素中,所有系统的核心要素是( )
【单选题】We are trying to improve education today ______ our children can meet the challenges of tomorrow.
【简答题】Children are____to meet with setbacks (挫折) as they grow up,so their parents don’t have to worry about it. A.possible B.due C.necessary D.bound
【判断题】人是物流系统的核心要素,是物流系统的主体。
【单选题】张某,女,19岁。因急起高热,显著头痛、肌痛、关节痛、乏力、咽干、食欲减退2天,伴鼻塞、流涕。眼结膜及咽部充血,肺部可闻及干啰音,拟诊"流行性感冒"。该病传染性最强的时期是()
【单选题】Children are ________ to meet with challenges as they grow up so parents don't have to worry about it.