A.飛濺變多、焊點顏色變深 B.飛濺變少、焊點顏色變深 C.飛濺變多、焊點顏色變淺 D.飛濺變少、焊點顏色變淺
A.80%~90% B.85%~90% C.90%~95% D.70%~85%
A.8 B.10 C.12 D.14