苗木调查或出圃时，采用广西标准进行苗木分级，若苗高在20cm以上、苗高属Ⅲ级、地径属Ⅱ级，则苗木为（）

心功能分级的主要依据是:

威尔逊在《行政学研究》一文中，从行政学（）和（）两个方面对行政学研究的目标和任务作了明确界定。

威尔逊在《行政学研究》一文中，从行政学（）和具体研究内容两个方面对行政学研究的目标和任务作了明确界定。

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。

种子种苗工作的内容和任务包括以下几个方面？

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。