Moyers预测法是
A.分析牙弓拥挤度B.预测牙齿大小协调性C.牙弓对称性的测量分析D.预测上牙弓的宽度E.预测未萌上下尖牙与双尖牙的宽度
参考答案:E
Just as the experts _______ it, this kind of material is not natural, but man-made.
A.get
B.put
C.make
D.mean
简述电除尘高压控制柜的开机步骤。