布孔参数有什么？
参考答案：
排间距、孔间距、炮孔邻近系数，炮孔超深。
Audiolingual Methodologists use dialogues as the main form of language presentation and______ as the main training techniques.
A．sentence patterns
B．drills
C．sentence analysis
D．language points
急腹症救治中应遵循的“五禁四抗”原则是什么？
