DVD动态图像标准是指()
A. MPEG-1
B. MPEG-2
C. MPEG-4
D. MPEG-7
机化的血栓中形成与原血管腔相互沟通的新生血管,使部分血流得以恢复,称为()
A. 侧支循环形成
B. 血栓机化
C. 血栓硬化
D. 再通
E. 动脉瘤形成
机舱失火难以控制,需使用固定CO2灭火系统进行封舱放救时,施放命令由()下达。
A. 船长
B. 轮机长
C. 大副
D. 政委
You create a package that contains PL/SQL variables that must be shared among several forms in the Travel application. You place the package in a library and attach the library to all the forms that need to share the data. Which parameter in the OPEN_FORM built-in must you set to ensure that changes made by one form are visible to the other forms in the application?()
A. data_mode
B. paramlist
C. query_mode
D. session_mode&e