根的维管形成层，木栓形成层是怎样产生、形成和活动的？

简述在脱硫装置内形成化学垢的机理。

物理风化主要形成（）物质、化学风化主要形成（）物质和（）物质。

简述生油层的地质特征及主要地球化学特征。

什么是绿色化学？简述绿色化学12原则。

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.

简述绿色化学的定义、特点及其与环境化学和环境治理的区别。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

化学学科的内容特点决定了化学学习中，学习者心理上形成化学学习中特有的“三重表征”形式，下列哪项不属于（）

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。