急性横贯性脊髓炎脊髓休克期和吉兰-巴雷综合征的鉴别点是
A．四肢瘫
B．腱反射消失
C．肌张力低
D．无病理征
E．括约肌障碍
参考答案：E
The source of energy fitted in GMDSS complying vessels must be（）.
A.the main source of energy
B.emergency source of electrical power
C.the reserve source of energy
D.all of above
刚性路面纵、横缝之间以相互（）为宜，当一次摊铺宽度大于4.5m时，增设纵向（）缝。
