压力容器内盛装介质的状态有哪些？
参考答案：
⑴液态；⑵气态；⑶气液混合态。
It was several minutes before I was ______of what was happening.
A．aware
B．accused
C．tired
D．a shamed
结构图上3422表示______。
A．3根直径22mmⅡ级钢筋
B．3根直径22mmⅠ级钢筋
C．3根半径22mm圆钢
D．3根直径22mm钢筋
