二进制数只有两个数字符号：0和1，其进位基数为2，进位原则为逢二进一。

十进制计数器是用十进制数码“0～9”进行计数的。

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。

（）是指各种进位计数制中允许选用基本数码的个数。

八进制缩是一种以8为基数的计数法，逢八进1，下面哪些数码属于八进制（）

（）是指各种进位计数制中允许选用基本数码的个数。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。