简述《油气田勘探》与《石油地质学》两门课程之间的区别和联系。

什么是背斜油气藏？背斜油气藏的油气分布有哪些特征？背斜油气藏根据成因可以分为哪几种类型？

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（）.

Effects which are dutiable or subject to prohibitions or restrictions should be declared in （）.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

裂缝性背斜油气藏与背斜油气藏的主要区别是：前者的储集层不是（），而是（）的。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。