下列哪种因素与动脉阻塞无关()
A．血栓形成
B．动脉瘤
C．肿瘤压迫
D．动脉粥样硬化
E．动脉栓塞
参考答案：B
Ballet is not popular our city because most people think it is too expensive to take the classes.
A．in
B．with
C．among
D．on
世界是发展的观点是
A．唯物辩证法的观点
B．唯心辩证法观点
C．辩证法观点
D．唯物主义观点
