青春期龈炎牙龈表现为 A.龋增生,呈细小分叶状 B.跟呈瘤样突起,有蒂、鲜红、质软 发布时间:2017-06-30 18:05 │ 来源:www.tikuol.com 题型:单项选择题 问题: 青春期龈炎牙龈表现为A.龋增生,呈细小分叶状B.跟呈瘤样突起,有蒂、鲜红、质软C.龋 * * 呈球样增生、质软,多见于前牙唇侧D.龋退缩、鲜红、质软E.龋肥大、苍白、质硬
题型:单项选择题 有关双代号网络计划图绘制原则的表述,说法正确的有()。A.网络计划图必须按照已定的逻辑关系绘制B.除终点和起点节点外,不允许出现没有内向箭线的节点和没有外向箭线的节点C.网络计划图中所有节点都必须编号,并应使箭尾节点的代号小于箭头节点的代号D.网络计划图中不允许出现从一个节点出发顺箭线方向又回到原出发点的循环回路E.不允许在网络计划图中出现工作箭线交叉现象 查看答案
题型:单项选择题 DOM is a platform-and language- (1) API that allows programs and scripts to dynamically access and update the content, structure and style of WWW documents (currently, definitions for HTML and XML documents are part of the specification). The document can be further processed and the results of that processing can be incorporated back into the presented (2) . DOM is a (3) -based API to documents, which requires the whole document to be represented in (4) while processing it. A simpler alternative to DOM is the event-based SAX, which can be used to process very large (5) documents that do not fit into the memory available for processing.A.documentB.processorC.discD.memory 查看答案