下列材料中属于功能高分子材料的是（）。 ①高分子膜 ②生物高分子材料 ③隐身材料 ④液晶高分子材料 ⑤光敏高分子材料 ⑥智能高分子材料

光敏高分子材料（光功能高分子材料）

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。

请列举常用幕墙保温材料的种类，并简要比较各自的特点。

常用于软组织填充的材料是

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

请认真阅读下列材料，并按要求作答。什么是模型思想？指出本节课的模型并列举小学数学中的模型。