平行度公差应小于其相应的距离公差值。
A. 对
B. 错
What is the passage mainly about?
A. setting sales prices
B. influencing competitors
C. lowering fixed exppenses
D. preventing rising expenses
Business are only allowed to lower prices if
A. they are dumping
B. they remain above their costs
C. they are being sued
D. their competitors agree
What can be inferred about dumping?
A. it is considered ethical.
B. it is legal in some countries.
C. it involves the makeup method.
D. it doesn't account for fixed expenses.
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