HRB335Ф28的钢筋闪光对焊接头进行弯曲试验时,其弯心直径是() ["A、140mm","B、112mm","C、84mm","D、168mm"]
阳虚水肿
阳虚阴盛
钢筋闪光对焊接头力学性能试验应取() ["A、拉伸试验2根冷弯试验2根","B、拉伸试验1根冷弯试验2根","C、拉伸试验2根冷弯试验1根","D、拉伸试验3根冷弯试验3根"]
甘草的根与根茎性状鉴别上的主要区别点() ["A、表面红棕色或暗棕色","B、具横长皮孔","C、外皮松紧不等","D、质坚实而重","E、断面中心无髓"]
阳虚则外寒