实现中国梦必须弘扬以改革创新为核心的时代精神，（）是弘扬时代精神的动力源泉。 坚持解放思想。 推进改革开放。 落实科学发展、构建社会和谐。 全面建成小康社会。
卸扣的许用载荷值近似计算公式为：（为销子直径：mm）（） 4d2。 7d2。 10d2。
什么是大气污染？
What does a Layer 2 switch do if it receives a frame with a destination MAC address that is not found in its MAC address table?（） The frame is dropped.。 The frame is addressed with a broadcast MAC address and sent out all ports.。 The frame is sent out all ports except the receiving port.。 An ARP request is sent out all ports except the receiving port.。 A destination unreachable message is sent back to the source address.。 None of the above.。
You are the network administrator for All servers run Windows Server 2003. You are creating a backup schedule for the main file server. You need to create a schedule so that backup jobs are completed in the shortest amount of time possible. What should you do?（） Schedule a normal backup every Sunday. Schedule incremental backups every Monday through Saturday.。 Schedule a normal backup every Sunday. Schedule differential backups every Monday through Saturday.。 Schedule a copy backup every day.。 Schedule a normal backup every day.。
会出现名义借款人失踪，实际借款人悬空贷款的后果的欺诈行为是（）。
