华东理工大学网络教育实行的是弹性学制，高起专和专升本两种层次的学习年限均是（）

按最早开始时间补充绘制时标网络图中虚框内的图形（将虚框内的内容复制在答题卡上作答），并写出关键线路和工期。

按最早开始时间绘制的时标网络图中，波形线代表的是()

按最早开始时间绘制的时标网络图中，波形线表示()

按最早时间绘制的时标网络计划中 “ 波折线” 的水平投影长度表示 

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。