题目内容

在船舶轴系中装设弹性联轴器,这属于()。

A. 积极隔振
B. 消极隔振
C. 主动隔振
D. A+C

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在FrontPage2003预览窗口中,要使制作的表格看不到边框则应将()调整为零。

A. 单元格的边距
B. 单元格的间距
C. 宽度与高度
D. 边框的粗细

Which two statements are true regarding the USING clause in table joins?()

A. It can be used to join a maximum of three tables
B. It can be used to restrict the number of columns used in a NATURAL join
C. It can be used to access data from tables through equijoins as well as nonequijoins
D. It can be used to join tables that have columns with the same name and compatible data type

简述SH、SW、POR、PORW、PORT、PORF、PERM、POR2、DGA。这些CRA程序输出曲线的含义。

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