According to the rules and regulations,

突发公共卫生事件是指突然发生，造成或者可能造成社会公众健康严重损害的重大( )

A．食物中毒事件

B．矿山安全事件

C．领导责任事件

D．医疗机构事故

E．公众安全事件

不同强度等级的砂浆用不同数量的原材料拌制而成。( )

在应收/应付账款核算模块中，手工核销与自动核销有何不同

WebSQL is a SQL-like (26) language for extracting information from the weB. Its capabilities for performing navigation of web (27) make it a useful tool for automating several web-related tasks that require the systematic processing of either ail the links in a (28) , all the pages that can be reached from a given URL through (29) that match a pattern, or a combination of both. WebSQL also provides transparent access to index servers that can be queried via the Common (30) Interface.

A．paths

B．chips

C．tools

D．directories

(4 )

A．

B．

C．

D．