横向力对钢轨伤损的影响有哪些？

Multipurpose Internet MaiI Extension (MIME) is a (1) document messaging standard in the Internet enviroment, with MIME, users can send (2) E-mail messages that include audio, video, graphices, and text to any other user of a TCP/IP network. Richtext information can also be (3) into messages. It defines the fonts, formats, and (4) features of a document so the document can be easily (5) on many different types of systems.

3（）

A．incorporated

B．filled

C．stored

D．filed

（8分）氮是地球上含量较丰富的一种元素，氮及其化合物在工农业生产、日常生活中有着重要作用。

（1）右图是1mol NO₂(g)和1mol CO(g)反应生成CO₂(g)和NO(g)过程中能量变化示意图，请写出NO₂和CO反应的热化学方程式            。

（2）在一定体积的密闭容器中，进行如下化学反应：

N₂(g)+3H₂(g)2NH₃(g)  

其化学平衡常数K与温度t的关系如下表：

完成下列问题：

①比较K₁、K₂的大小：K₁    K₂（填“>”、“=”或“<”）。

②判断该反应达到化学平衡状态的依据是    （填序号）。

A．

B．

C．容器内压强保持不变

D．混合气体的密度保持不变

WLANs are increasingly popular because they enable cost-effective connections among people and applications that were not possible in the past. For example, WLAN-based applications can enable fine-grained management of supply (11) to improve their efficiency and reduce (12) . WLANs can also enable entirely new business processes. To cite but one example, hospitals are using WLAN-enabled point-of-care (13) to reduce errors and improve overall patient 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 (14) through rogue access points.They can improve overall network management by integrating with customers’ existing systems. 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- (15) deployment and administrative chores.

（11）是（）

A.custom

B.server

C.chains

D.chances

（）是人民警察的任务。

A、预防、制止和惩治违法犯罪活动

B、倾听人民的意见和建议

C、保持同人民的密切联系

D、依法行使职权

“只有我老板才可以同意这个变更，但是他现在不在，为什么我们不能坚持进度计划呢。我可以同意这一点”，这是______谈判技术。

A．好人、坏人
B．拖延
C．失踪
D．权力有限