下列涎腺肿瘤中，最易沿神经扩散的是（） A.混合瘤 B.黏液表皮样癌 C.腺泡细胞癌

下列各句中加点的成语，使用恰当的一项是

A．在被戏称为“石灰窑工业园区”的强拆现场，伴随着挖掘机的轰鸣声，40多座小石灰土窑顷刻间分崩离析，被彻底拆除。

B．有时候文学的看法和时代的看法总是背道而驰，这是因为文学有着超越时代的持久不变的原则，而喜新厌旧则差不多是每一个时代的原则。

C．我们密切关注“西藏独立”事态的发展，达赖集团铤而走险，企图分裂祖国，必将石沉大海，付出沉重代价。

D．在南部边陲乡村，男性吸毒已经蔚然成风，就像吸烟、喝酒一样成为男子气概的象征。

There is no question that computer applications such as (71) , electronic mail, and (72) publishing have changed the way people work. These computer applications have enhanced users capacity for communication and have improved their productivity. The success of these applications has prompted both vendors and researchers to continue to seek new ways to further advance the information technology revolution. Enter the latest innovation: networked (73) systems. They convey information in multiple (74) : text, graphics, video, audio, (75) , computer simulations, and so forth. Advocates of these systems argue that they are the next logical step in human communication; however, modifying our current networks to accommodate the variety of media will present significant technical difficulties.

A．on-desk

B．tabletop

C．desktop

D．table-board

跨入21世纪，我国进入了___________的新的发展阶段。[ ]

①社会主义初级阶段②全面建设小康社会③加快推进社会主义现代化④实现 * * 主义社会

A．②③

B．①③

C．①④

D．②④

Beacon帧中主要包含的是（）.

A.BSSID

B.SSID

C.支持的速率

D.支持的认证方式

E.加密算法

F.Beacon帧发送间隔

卫星遥感目前已经被广泛的用于大气科学领域的各个方向，请大概列举四条大气科学领域的研究热点。