是先天性异常眼眶病变()儿童眼球突出的最常见原因()成人眶内最常见的良性肿瘤是()上睑退缩和滞后见于()儿童最常见的原发性眶内恶性肿瘤()
A. 海绵状血管瘤
B. 横纹肌肉瘤
C. 甲状腺相关性眼病
D. 眶蜂窝织炎
E. 以上都不是
查看答案
2014年6月9日,中共中央总书记习近平出席中国科学院、中国工程院院士大会并发表重要讲话。他强调,我国科技发展的方向就是创新、创新、再创新。我国之所以高度重视科技创新,是因为()①发展科技是我国的中心工作②创新就能实现我国经济的跨越式发展③科技创新有利于生产力的发展,实现经济发展方式的转变④科技创新有利于增强综合国力
A. ①②
B. ①③
C. ③④
D. ①④
WLANs are increasingly popular because they enable cost-effective connections among people, applications and data that were not possible, or not cost-effective, in the past. For example, WLAN-based applications can enable fine-grained management of supply and distribution (1) to improve their efficienty and reduce (2) .WLANs can also enable entirely new business processes. To cite but one example, hospitals are using WLAN-enabled point-of-care applications to reduce errors and improve overall (3) care. WLAN management solutions provide a variety of other benefits that can be substantial but difficult to measure. For example, they can protect corporate data by preventing (4) through rogue access points. They help control salary costs, by allowing IT staffs to manage larger networks without adding staff. And they can improve overall network mananement by integrating with customers' existing systems, such as OpenView and UniCenter. Fortunately, it isn't necessary to measure these benefits to justify investing in WLAN management solutions, which can quickly pay for themselves simply by minimizing time-consuming(5) and administrative chores.空白处(1)应选择()
A. chores
B. chains
C. changes
D. links
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, and extra(2)(z and time) to the presentation of documents. The applications of VRML are(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 which the development of VRML is continued. X3D is based on XML and is 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