单项选择题：训练班级成员自己管理自己、自己教育自己、自主开展活动的最好载体是（　　）。

It’s true that high-school coding classes aren’t essential for learning computer science in college.

Happy people work differently.They’re more productive,more creative,and willing to take greater risk

Text 3 Even in traditional offices,“the lingua franca of corporate America has gotten much more emot

钢丝、钢绞线、热处理钢筋及冷拉Ⅳ级钢筋等预应力钢筋，应采用电弧切割。A．正确B．错误

关于证券交易买卖差价，以下表述错误的是( )。