钢锭由冒口、锭身和水口三部分组成.
参考答案:对
The door______.Better have it repaired.
A.won’t shut
B.hasn’t been shut
C.won’t be shut
D.isn’t shut
下列方法中,不属于WindowListener接口的是【 】
A.windowOpened()
B.window Closed()
C.window Activated()
D.mouseDragged()