对于可疑文件物证的勘验时,必须采用首先固定文件原貌,然后再提取。()
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IP在首部有8bit的协议域,其中6表示TCP协议,17表示UDP协议。
A. 正确
B. 错误
Before starting a gasoline engine on a motorboat,you should make sure for safety that().
A. the gasoline tank is full
B. the bilges,cabins,etc. are thoroughly ventilated
C. you have fresh water on board
D. Each of the above is followed
派出所民警备勤时,应当将警械、枪支放置在随时能取用且安全的地方。
A. 正确
B. 错误