题目内容

主轴加工采用两中心孔定位,能在一次安装中加工大多数表面,符合________。

A. 基准重合原则
B. 基准统一原则
C. 自为基准原则
D. 互为基准原则

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Refer to the exhibit. A router has a 256 kbps Frame Relay circuit connected to interface serial 0/0. As a large FTP packet is being placed into the hardware transmit queue of interface serial 0/0, a voice packet is placed into the priority queue of that interface. How, and in what order, wi the packets be transmitted?()

A. the voice packet will be transmitted first, followed by the FTP packet in its entirety
B. the voice packet will be transmitted first, followed by the fragmented FTP packet
C. the FTP packet will be fragmented and the voice packet will be interleaved
D. the FTP packet will be transmitted first in its entirety, follow by the voice packet

群体行为

属于丙类传染病的是()

A. 血吸虫病
B. 鼠疫
C. 霍乱
D. 普通感冒
E. 风疹

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