女，25岁，产后3周，左乳房胀痛，伴发热。查左乳房内上象限压痛，有波动感。确诊应先做（）。

已知A=40；B=30；C=100；D=50，逻辑“与”运算符为and，“或”运算符为or，“非”运算符为not。计算表达式（A>B+20）or（B+60<>

系统中雷达状态包括Unknown、Operational（or ON）、Failed（or OFF）、Detached。

执行下列程序段后 MOV AL，87 MOV CL， 4 MOV AH， AL AND AL，0FH OR AL， 30H SHR AH，CL OR AH，30H 则AX=( )H

Shutdown price（or point，or rule） 停业价格（或停业点、停业原则）

翻译：With Average or With Particular Average（WA or WPA）（）

表达式XB="男".OR.XB="女"的等价表达式为（）。

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。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。