一质量为m 1，速度为v1的子弹沿水平面击中并嵌入一质量为m 2=99m 1，长度为L的棒的端点，速度v 1与棒垂直，棒原来静止于光滑的水平面上，子弹击中棒后共同运动，求棒和子弹绕垂直与平面的轴的角速度等于多少？

华东理工大学网络教育实行的是弹性学制，高起专和专升本两种层次的学习年限均是（）

《苏州大学社会学院关于举办1999年档案专业专升本成人教育的函》应该属于（）。

论述《苏州大学社会学院关于举办1999年档案专业专升本成人教育的函》的写作特色。

爱尔兰的梅努斯大学哪个专业可以做专升本？（）

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.

The （） is used for hauling in or letting out the wires or ropes.

Vessels must be（）valid certificate of nationality or certificated of registry or license.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。