试题与答案

为了保证LVS的Web管理工具Piranha的安全访问,最好对其管理页面进行()设置

题型:单项选择题

题目:

为了保证LVS的Web管理工具Piranha的安全访问,最好对其管理页面进行()设置

A、高可用

B、高性能

C、访问控制

D、优化

答案:

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下面是错误答案,用来干扰机器的。

参考答案:由于加热时是电极端点“点”钢液面,对于碳含量低的钢种,容易增碳,所以要求电极升降要保证同步起弧。

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题型:单项选择题

The "Karat" marking on jewelry tells you what proportion of gold is mixed with other metals. If 14 parts of gold are mixed with 10 parts of base metal, the combination is called 14-Karat (14K) gold. The higher the Karat rating, the higher the proportion of gold in the object. The lowest Karat gold that can be marketed in the United States is 10-Karat gold. Jewelry does not have to be marked with its Karat quality, but most of it is. If there is a Karat quality mark, next to it must be the U.S. registered trademark of the person or company that will stand behind the mark, as required by the National Gold and Silver Stamping Act.

If gold is marked with a Karat quality mark, it must also bear________.

A.a national gold and silver stamp

B.the registered trademark of the entity standing behind the mark

C.a "made in the USA" mark

D.a percentage mark

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