房屋租赁期内，房屋所有权人转让房屋的，原房屋租赁合同继续有效。()（2012年试题）

合同变更有广义和狭义之分，广义的合同变更包括（）。

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.

When loading or discharging dry mud or cement，crew members should use goggles and（）.

技术转让合同包括专利申请转让、非专利技术转让所书立的合同。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

在技术经济学中，广义的技术包括（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。