简述番茄汁产生沉淀的原因及预防措施。

番茄畸形果产生的原因和预防措施有哪些？

果树产生落花落果的直接原因是（）。

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。

辣椒的“三落病”是指（），导致青椒落叶、落花、落果。

阐述番茄、茄子、青椒栽培技术异同点。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。