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【判断题】
Once an artificial variable becomes a non-basic variable in the iteration, the variable and the number of the corresponding column can be deleted from the x table without affecting the calculation results.( )
A.
正确
B.
错误
举报
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】The generator generates electromotive force through rotation. It is a device that can continuously provide current, so it is called ().
A.
The power supply
B.
Electromotive force
C.
Voltage source
D.
Voltage
【单选题】What makes the Lion Hall a natural music hall?
A.
honeycomb caverns in the ceiling
B.
the roaring of lions
C.
the rushing rivers
D.
the heavy wind
【多选题】下列有关先心病CTA检查技术的叙述,正确的是()
A.
选择非离子型对比剂浓度为300mg/ml,可避免明显硬化束伪影
B.
儿童监测层面在四心腔层面
C.
儿童多采用手动触发扫描
D.
成人多取CT值达100Hu阈值时,自动触发扫描
【单选题】What kind of fish live in the karst caves of Jiuxiang Scenic Region?
A.
carp
B.
blindfish
C.
catfish
D.
goldfish
【单选题】The synchronous speed of the generator and the magnetic pole logarithm of the generator are ().
A.
Direct proportionality
B.
Inverse proportional relation
C.
Out of proportion
D.
The same
【单选题】How is the fish here special?
A.
They do not need eyes.
B.
They do not have eyes.
C.
Their eyes have degenerated.
D.
They do not have eye sockets.
【单选题】If the constraint equation contains a variable whose coefficient sequence vector is the unit vector, then it is unnecessary to introduce ( ) into this constraint equation.
A.
relaxation variable
B.
residual variable
C.
artificial variable
D.
free variable