【判断题】齿轮传动中,压力角越大,传动越省力。( )
【判断题】Both order bill of lading and straight bill of lading can be transferred to the third party by endorsement.( )
【判断题】Both order bill of lading and straight bill of lading can be transferred to the third party by endorsement. ( )
【单选题】同学们学习一段舞蹈动作,刚开始进步很快,但一段时间后进步不明显,甚至停滞不前。这在技能练习上称为()。
【判断题】局部电位就是细胞膜上出现的较局限的动作电位。
【判断题】Straight Bill of lading are not negotiable and cannot be transferred to third parties,( )