2013年天猫双十一交易额350.19亿元，购物节最核心的宣传点是5折促销。打折对消费者需求的影响，可示意为  

During the manufacture of line，yarns are twisted together in the（）.

A.opposite direction from which the fibers are twisted together to form strands

B.same direction the fibers are twisted to form strands

C.opposite direction from which the fibers are twisted together to form the line

D.opposite direction from which the fibers are twisted together forming cables