背越式跳高的空中过杆动作，身体一般完成相向运动的次数为（）

背越式跳高身体过杆后，以（）先接触海绵包。

背越式跳高身体过杆后，以（）先接触海绵包。

背越式跳高身体过杆后，以（）先接触海绵包

快速跑的教学重点是（），背越式跳高的教学重点是（）。

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。

背越式跳高身体过杆后，以（ ）先接触海绵垫。

为什么说背越式跳高是目前最先进的跳高技术？

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。