开模后，使压铸件从成型零件上脱出的机构称为（）。
参考答案：推出机构
-When will you go back to your hometown? - _______.
A．Until the work is finished
B．Not until the work is finished
C．After the work will be finished
D．As soon as the work will be finished
手术后心肌梗死一般发生在术后用。()
