挥发油由()、()、()及()四类成分组成,其中()所占比例最大。
You are creating a Windows Forms application for a financial service provider by using the .NET Framework 3.5. You have to implement a multiple document interface (MDI) in the application to allow users to open multiple financial documents simultaneously.You need to ensure that whenever the child MDI form is created, the application displays a message in the title bar of the parent MDI that a child form has received focus. What should you do?() Implement theActivated event。 Implement the MdiChildActivate event。 Override the OnParentVisibleChanged method。 Override the OnParentBindingContextChanged method。
When installing a Cisco WCS, which two ports can be changed during installation?() HTTPS。 TFTP。 RMI。 HTTP。 FTP。
为了降低配送运输成本,对货物进行装车调配、优化处理,提高车辆在容积和载货两方面的装载效率,这称为()。 积载。 装载。 卸载。 加载。
患者,男性,52岁,毕Ⅱ式胃大部切除术后6d,右上腹突发剧痛,并出现腹膜刺激征,应考虑()。 胃出血。 十二指肠残端破裂。 吻合口梗阻。 吻合口近侧空肠梗阻。 吻合口远侧空肠段梗阻。
轻度精神发育迟滞智商约为()