人体形态曲线美的第一个含义是流畅、鲜明、（），第二个含义是线条起伏对比恰到好处。

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。

“信天游”是流行在陕西、甘肃、宁夏的一种山歌。其旋律有两种类型：一种是_节奏自由，旋律高亢辽阔，起伏比较大，一种是_节奏工整，结构严谨，旋律平稳，表达感情比较细腻。《脚夫调》是一首流行在（）的一首信天游。

起伏性线条的主要视觉效果是富于变化，使画面具有精美的感觉。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。