单项选择题

图示体系的计算自由度等于

A．-1
B．0
C．1
D．2

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单项选择题

A cleaning fluid is produced by a series of process. The following information relates to the final process:
Opening WIP 2000litres
Closing WIP 1500litres
Input 42300litres
Transfer to finished goods stock 40100litres
Normal loss 400litres
The abnormal loss is:

A．2300litres
B．1300litres
C．800 litres
D．1800litres

C语言中++a和a++没有任何区别，是一样的

答案：错误