定重制和定长制的定义是什么？
参考答案：
1.定重制：单位重量纤维的长度。
2.定长制：单位长度纤维的重量
A．Yes, he gives the woman five pounds and promises to go to the match.
B．No, he doesn’t want to watch the match.
C．Yes, he likes to watch but want to have a free ticket.
D．No, he likes to watch the match only through TV.
致密度
