通常认为冬小麦（秋播小麦）播种的适宜时期是日平均气温稳定下降到（）

春性、半冬性、冬性小麦品种适宜播种时的日平均温度分别为（）℃、（）℃、（）℃。

春小麦适期播种时，当地的日平均气温稳定通过（）

春小麦时期播种的气象指标日平均温度稳定在（）。

建筑热工设计分区的主要指标是（）和（）平均温度，辅助指标是累年日平均温度<=5度和>＝25度的天数。

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。