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问题 单项选择题

下列关于触头法检测钢板对接焊缝说法不正确的是（）

A.为了检出横向缺陷，触头连线应与焊缝垂直。

B.在检测范围内，磁场强度的方向与大小并不完全相同。

C.必须注意通电时电弧烧损工件问题

D.触头外侧附近磁场强度大。

答案

参考答案：D

单项选择题

运动神经传导速度所反映的是（）

A.运动神经髓鞘的功能

B.感觉神经髓鞘的功能

C.运动神经轴索的功能

D.神经肌肉接头的功能

E.锥体束的功能
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单项选择题

Virtualization is an approach to IT that pools and shares (86) so that utilization is optimized and supplies automatically meet demand. Traditional IT environments are often silos, where both technology and human (87) . are aligned around an application or business function. With a virtualized (88) , people, processes, and technology are focused on meeting service levels, (89) is allocated dynamically, resources are optimized, and the entire infrastructure is simplified and flexible. We offer a broad spectrum of virtualization (90) that allows customers to choose the most appropriate path and optimization focus for their IT infrastructure resources.

A．solutions

B．networks

C．interfaces

D．connections
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