So loudly _____ that ____ hear her clearly. [ ]

A. did she speak; could everyone　

B. did she speak; everyone could

C. she spoke; could everyone　

D. she spoke; everyone could

变压器焊接时，先用挂钩刮刀将变压器绝缘层刮干净上锡，再将剥头线缠绕在变压器接头处焊接，这种焊接法叫（）。焊接端若有孔即可穿孔焊接，这种焊接法叫钩焊。其目的是保证焊接点牢固可靠。

A、钩焊

B、搭焊

C、绕焊

D、点焊