生物半减期（T1/2）

土壤微生物营养类型的多样性包括（）、土壤微生物种群多样性、（）、微生物呼吸类型多样性。

在土壤有机质的转化过程中，最重要的土壤生物是（）。

有机粉尘分为植物性粉尘、动物性粉尘和生物性粉尘。

（） are individuals and organizations that are actively involved in the project, or whose interests may be affected as a result of project execution or project completion.

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（）.

Vessels must be（）valid certificate of nationality or certificated of registry or license.

（75）are individuals and organizations that are actively involved in the project，or whose interests may be affected as a result of project execution or project completion.

are individuals and organizations that are actively involved in the project，or whose interests may be affected as a result of project execution or project completion．

（） are individuals and organizations that are actively involved in the project, or whose interests may be affected as a result of project execution or project completion.

半减期（half life）

从生物学的观点看韭菜避光后生长嫩白不属于植物病害。