【判断题】最重要的用户界面要素是软件符合现行标准和规范。 ( )
【单选题】用两阶段法求解线性规划 时,下列说法不正确的是( )。
A.
第一阶段求解结果为z≠0,说明最优解的基变量中含有非零的人工变量,从而表明原问题无可行解
B.
如果第一阶段求解结果z=0,如果辅助问题的最优基变量中没有人工变量,进入第二阶段
C.
如果第一阶段求解结果z=0,如果辅助问题的最优解就是原问题的最优解
D.
当第一阶段求解结果表明问题有可行解时,第二阶段是在原问题中去除人工变量,并由第一阶段得到的最优解出发,继续寻找原问题的最优解
【单选题】Why does the speaker ask the questions?
A.
To check the students' understanding of the story.
B.
To draw the students' attention to reading skills.
C.
To let the students discuss father-son relationships.
D.
To motivate the students.
【单选题】Let`s check the operating condition of the echo sounder
A.
The speaker wants to check the gyro compass
B.
The speaker wants to check the magnetic compass
C.
The speaker wants to check the echo sounder
D.
The speaker wants to check the speed log
【单选题】Beowulf is a(n) _______, which was sung and passed by people in the past.
【单选题】Check the marks
A.
Please check if the cargo has the correct marks
B.
Please check if the cargo has the correct labels
C.
Please check if the cargo has the correct technical names
D.
Please check if the cargo has the correct segregation
【单选题】Let`s check the operating condition of the magnetic compass and the date of last calibration
A.
The speaker wants to check the gyro compass
B.
The speaker wants to check the magnetic compass
C.
The speaker wants to check the echo sounder
D.
The speaker wants to check the speed log
【简答题】大中型发酵罐罐体和封头采用整体焊接,罐内采用( )换热。