多点焊
参考答案：
用两对或两对以上电极，同时或按自控程序焊接两个或两个以上焊点的点焊。
"______ the friendship between our two people last forever!", and with this sincere hope, the president concluded his speech.
A．Could
B．May
C．Would
D．Must
（）
A．
B．
C．
D．
（）
