The heat identified by only a change in temperature is known as (). 正确。 错误。
通过单机防火墙可以侦听外界对本机所采取的攻击,提醒用户采取防范措施。 正确。 错误。
井下技术状况是指封隔器工作状况、()等。 正确。 错误。
试述光纤材料色散的定义及其引起的原因。 正确。 错误。
()means a document which evidences a contract of carriage by sea and the taking over or loading of the goods by the carrier,and by which the carrier under takes to deliver the goods against surround of the document. 正确。 错误。
如果网络入侵者是在防火墙内部,则防火墙是无能为力的。