各类会议必须坚持“（）、（）、（）、”的原则，能不开的会坚决不开，能够合并的会坚决合并，尽量采取视频会议方式召开。

The full title of the U.K. is the United Kingdom of （）and （）

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public and private colleges and universities and community colleges offer（）.

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（）is used for calling and replying,and for transmitting acknowleding and relaying distress alerts.

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The way in which people address each other depends on their age, sex, social group and personal relationship. The English system of address forms frequently used includes first name, last name, title+last name, （）, and kin term.

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装卸（Loading and Unloading）

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零点极点（zero and pole）

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零点极点 (z ero and pole)

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根轨迹方程 (magnitude and phase equations)

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画出该段指令程序对应的梯形图。 LD NOT 0000 LD 0001 AND 0002 LD NOT 0003 AND 0004 OR LD AND LD TIM 00 #0030 LD 0005 AND 0006 OR NOT 0007 OUT 0500

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