“多子多福”的世俗观念，影响了我国人口的发展。[ ]

电复律和电除颤的适应证总的原则是（）

A.对于任何快速型的心律失常，如导致血流动力学障碍或心绞痛发作加重，而药物治疗无效者

B.异位兴奋灶（自律性增强）性快速型心律失常

C.非阵发性交界区心动过速

D.加速性室性自主心律

E.洋地黄中毒引起的房颤

如图所示，实线圆环A、B是光滑绝缘水平面内两个固定的同心超导环，两环分别通上大小相等的电流后，在环间环形区域内产生了相同方向的磁场，在这两个磁场的共同“束缚”下，带电离子沿图中虚线做顺时针方向的圆周运动，已知A环中电流沿顺时针方向，则（　　）

A．B环中电流沿顺时针方向

B．B环中电流沿逆时针方向

C．带电离子带正电

D．带电离子带负电

通过对户外广告进行调查就可以知道人们对户外广告留意的具体情况中（）是引人注目的最简洁的形式。

A、特殊的位置

B、鲜艳的色彩

C、独特的创意

D、醒目的标题

Virtualization is an approach to IT that pools and shares (1) so that utilization is optimized and supplies automatically meet demand. Traditional IT environments are often silos, where both technology and human (2) are aligned around an application or business function. With a virtualized (3) , people, processes7 and technology are focused on meeting service levels, (4) is allocated dynamically, resources are optimized, and the entire infrastructure is simplified and flexible. We offer a broad spectrum of virtualization (5) that allows customers to choose the most appropriate path and optimization focus for their IT infrastructure resources.

(5)

A．solutions

B．networks

C．interfaces

D．connections

计算题：叙述滑移法竖立桅杆的基本方法，并画出示意图及标出所用吊索机具的名称？