在下列优点中,不属于机车牵引高速列车的优点是()。
参考答案:轴重轻
Which word of the following doesn't have the same stress as the others?
A. Spanish B. Accept C. Repeat
神经衰弱的最主要症状是( )
A.易疲劳
B.易激惹兴奋
C.睡眠障碍
D.头昏、头痛
E.情绪障碍