翻译：With Average or With Particular Average（WA or WPA）（）

厂商在保持投入比例不变的条件下增加生产要素，如果产量的增加小于要素增加的比例，那么生产函数表现为（）

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。

厂商生产某种产品要用X和Y两种要素，如果这两种要素的价格相同，则该生产者要实现最大利润就要用相同数量的要素投入。

设某厂商的生产函数为，在本生产期内，资本投入量为单位，劳动投入量为单位。 （1）求这时各要素的边际产量。 （2）若厂商处于利润最大化状态，而此时资本的价格为每单位元，那么工资率应为多少？ （3）如果产品的价格为元，求厂商对劳动的需求曲线。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。