单项选择题
A.横向搭接不小于一个波,纵向搭接不小于100mm B.横向搭接不小于一个波,纵向搭接不小于200mm C.横向搭接不小于二个波,纵向搭接不小于100mm D.横向搭接不小于二个波,纵向搭接不小于200mm
A.5 B.10 C.15 D.20
A.≥75% B.≥100% C.≥50% D.≥80%