【单选题】熔化极气体保护焊的焊接工艺参数调节方式中( )。
【单选题】Helen was seriously injured in a car_________.
【单选题】熔化极气体保护焊的焊接工艺参数调节方式有一元化调节、两元化调节和( )。
【单选题】熔化极气体保护焊,焊接工艺参数调节方式有抽头式调节、两元化调节和()。
【单选题】熔化极气体保护焊,焊接工艺参数调节方式有一元化调节、抽头式调节和( )。
【单选题】熔化极气体保护焊,焊接工艺参数调节方式有一元化调节、两元化调节和().
【单选题】Helen was seriously injured in a car()
【单选题】According to Helen, what was Mrs. Svoboda like when she was just admitted?
B.
She was seriously sick.
C.
She wasn’t as bad as she is now, but was still quite critical.
【单选题】熔化极气体保护焊,焊接工艺参数调节方式有抽头式调节、两元化调节和()。