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.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

回转钻孔可分为正循环回转钻孔、反循环回转钻孔。反循环适用于（）。

钻孔灌注柱的钻孔工序如何选择正、反循环回转钻机？

在灌注桩的成孔施工中，当采用正循环回转钻孔时泥浆的作用表现为（）

正循环回转钻孔的特点有（）。

灌注桩施工采用正循环回转钻机钻孔因故停钻时，孔内泥浆应保持规定的（）和相对密度。

简述正循环回转钻孔原理。

二级建造师可以担任（ ）建设工程项目施工的项目经理。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。