饱和液体变成干饱和蒸汽的过程温度（）。
参考答案：不变
The rescue team has saved more than ten people________under the collapsed buildings since the earthquake occurred in Ya’an.
A．trapping
B．to be trapped
C．trapped
D．having trapped
金瓷冠唇面肩台一般为
A．0.5mm肩台
B．1.0mm肩台
C．1.2mm肩台
D．1.5mm肩台
E．2.0mm肩台
