一旦表层土壤形成干土层，土壤水分蒸发损失比较（）

高产优质的茶园，土层深厚，有效土层在（）以上，土质疏松、肥沃，有机质含量高，土壤pH多在（）。

土壤中微生物的数量及分布受（）、（）和（）的影响。

基于中国土壤系统分类制的中国土壤分布，我国（）分布区是我国农业精华地区和主要林区。

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。

大白菜根系主要分布在浅土层，多利用浅土层中养分和水分，而利用深土层中养分和水分的能力（）。栽培上在促进浅土层根系发达的同时，尽可能加深根系的分布