搜题请搜索小程序“爱下问搜题”
问题 单项选择题

臀位的处理正确的是

A．破膜后立即听胎心，如变慢可吸氧及药物纠正
B．如在 * * 口见到胎足，证明宫口开全，应尽快结束分娩
C．如见胎粪排出说明胎儿缺氧应行臀牵引术
D．为避免胎足娩出手掌堵 * * 口，时间越长越好
E．胎儿脐部娩出至胎头娩出最长时间不能超过8分钟

答案

参考答案：E

单项选择题

NAC's (Network Access Control) role is to restrict network access to Only compliant endpoints and (66) users. However, NAC is not a complete LAN (67) solution; additional proactive and (68) security measures must be implemented. Nevis is the first and only comprehensive LAN security solution that combines deep security processing of every packet at 10Gbps, ensuring a high level of security plus application availability and performance. Nevis integrates NAC as the first line of LAN security (69). In addition to NAC, enterprises need to implement role-based network access control as well as critical proactive security measures — real-time, multilevel (70) inspection and microsecond threat containment.

（67）处填（）。

A．crisis

B．security

C．favorable

D．excellent
查看答案
填空题

甲、乙、丙均为初中化学中学过的常见单质，它们之间的反应和转化关系如图所示（“-”表示相连的两种物质能发生反应，“→”表示由某物质可转化为另一种物质）．甲与乙、甲与丙反应都生成氧化物，且甲与丙反应的生成物常温下为液体．回答下列问题：

（1）物质甲、乙的化学式是：甲______； 乙______．

（2）乙的一种用途是______．

（3）写出“乙→丙”的化学方程式______，反应的基本类型是______．
查看答案