黄河下游的防洪体系分工程防洪体系和非工程防洪体系，请问什么是非工程防洪体系？

2010年，中国西南五省市遭遇特大旱灾，这些地区农作物遭受重大损失，群众生活也受到影响，下列对这次特大旱灾的原因分析不正确的一项是（ ）。

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.

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（）.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

《中华人民共和国防洪法》规定，在江河．湖泊上建设防洪工程和其他水工程．水电站等，应当符合防洪规划的要求；水库应当按照（）的要求留足防洪库容。

《中华人民共和国防洪法》规定，在江河、湖泊上建设防洪工程和其他水工程、水电站等，应当符合防洪规划的要求；水库应当按照（）的要求留足防洪库容。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。