根据相反数的定义-7的相反数为-(-7)即7.
故答案为:7.
良好蜡铸型应具备的条件除外()
A.组织面清楚
B.完全覆盖缺损部位
C.有正常解剖形态及关系
D.邻面应全部接触以增加固位
E.不变形
He thought of a very good way to stop the car ________.
A.to steal
B.to be stolen
C.from stealing
D.from being stolen