科是植物中要分类单位之一,下列植物隶属于松科的有( )

无花果的花序属于（）花序，果实在植物学分类上叫（）果，生产上栽培较多的是（）型无花果。

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.

现在采用的生物分类单位依次是（）。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

植物分类的基本阶层中，级别由高到低依次是界、门、纲、目、科、属、种。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

生态型是分类学上（）以下的分类单位。