单自由度体系自由振动的振幅取决于：（ ）

与单自由度体系一样，两个自由度体系建立振动方程的方法有（  ）。

简述单自由度系统的有阻尼自由振动的振动特性。

列出单自由度扭振系统的自由振动方程，求出微分方程的解和初相位。

Every deliberate act of wrongdoing by the master or any of the crew against the ship or cargo，without the authorization or privity of the Shipowner or his agent，is（）.

（）, or drum is used for hauling in or letting out the wires or ropes which will fasten the ship to the shore.

A salvor may be（）the whole or part of the payment due under Salvage Convention to the extent that the salvage operations have become necessary or more difficult because of fault or neglect on his part or if the salvor has been guilty of fraud or other dishonest conduct.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

有阻尼单自由度体系强迫振动时，位移总是滞后于（）

结构动力特性的测定方法有：自由振动法、共振法和脉动法。

单自由度体系自由振动时，实测振动10周后振动衰减为y10＝0.0016y0，则阻尼比等于（　　）。[2019年真题]

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。