孢子体发达，配子体退化且完全即使在孢子体上。

苔藓植物配子体发达，孢子体退化，并寄生在配子体上。

糠虾类头胸甲不发达，未覆盖全胸。腹枝退化，尾扇发达，尾枝内枝基部常具有一系列红点。

人和兔都具有盲肠，但兔的盲肠很发达，而人的盲肠高度退化，这一事实可解释为（）

苔藓植物门的世代交替特点是（）发达，（）不发达，而（）寄生在（）上。

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.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。