不定芽产生的途径一是从外植体上直接产生，二是从由（）产生的愈伤组织上产生。

适用于根系大量发生不定芽而长成根蘖苗和树种是（）

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。

1949年5月，中共河南省委决定重组河南大学，任命谁为校长？（）

药学人员在药学实践中，通过树立执业理想，形成良好的执业习惯，体现了药学职业道德的（）

药学人员在药学实践中，通过树立执业理想，形成良好的职业习惯，体现了药学职业道德的

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。