两条或两条以上的等间隔的螺旋线产生的螺纹叫（）。
A.混合螺纹
B.多头螺纹
C.单头螺纹
参考答案：B
I didn't say anything like that at all. You are purposely ______ my ideas to prove your point.
A．revising
B．contradicting
C．distorting
D．distracting
