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After the war, a new school building was put up _____ there had once been a theatre.
How close parents are to their children ____ a strong influence on the character of the children
Having heard so much about Mr. Smith, they were _______ to meet and have a chat with him.
Tom likes animals very much. He __________ wants to keep a pet snake.
8255A有3种工作方式,其中____________只允许端口A使用。
D /A转换器的作用是将数字信号转换成
__ ____
。
图2(a)和(b)两梁抗弯刚度相同,荷载相同,则其( ) 。
图1(a)和(b)为材料相同的悬臂梁,(a)梁最大挠度是(b)梁的( )
图3阶梯形杆受三个集中力
P
作用.设
AB
、
BC
、
CD
段的横截面面积分别为A、2A和3A,则三段杆的横截面上轴力和应力分别( )
图1(a)和(b)为材料相同的悬臂梁,(a)梁最大挠度是(b)梁的( )
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