春秋战国时代,诸子百家讲政治时大多站在民众一边,替百姓打算,唯有一家与其他各家不同,为君主参谋,专替君主打算。这一家是()
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VRML is a(1)for 3D multimedia and shared virtual worlds on the WWW.In comparison to HTML, VRML adds the next level of interaction,structured graphics,andextra(2)(z and time)to the presentation of documents.The applications of VRMLare(3),ranging from simple business graphics to entertaining WWW page graphics, manufacturing,scientific,entertainment,and educational applications,and 3D shared virtual worlds and communities. X3D is the name under wluch the development of VRML is continueD.X3D is based on XML andis backwards(4)with VRML.Furthermore,it is componentized,profiled, and extensible,which makes it possible to use X3D in very different(5),from high-end visualizations to lightweight applications.空白(3)处应选择()
A. broad
B. implicit
C. explicit
D. special
按用途和性能对水泥的分类中,下列哪项是错误的:()。
A. 通用水泥
B. 专用水泥
C. 特性水泥
D. 多用水泥
慢性毒性试验对动物的要求,正确的是()。
A. 成年动物
B. 初断乳动物
C. 必须为啮齿类动物
D. 雄性动物
E. 雌性动物
Leber视神经萎缩是()
A. 多因素遗传病
B. 线粒体遗传病
C. X连锁遗传
D. 常染色体显性遗传
E. 常染色体隐性遗传