舞蹈是形体动作的艺术，亦是时空艺术。舞蹈艺术具有动作性、（ ）、审美性三个基本特征。

形体练习兼有芭蕾、舞蹈和体操的特点。

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.

在视图中，当两形体表面相交时，两形体的相交处（）；当两形体表面相切时，两形体的相切处（）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

健美操是在音乐伴奏下，以轻器械练习为基本手段，达到增进健康，塑造形体的体育运动。

假如某因素与某病关系的病例对照研究结果的OR值为0.3（P＜0.01），最可能的解释是（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。