关于船级检验中的船底外部及有关项目的检验，以下表述有误的是（）。A．船底外部及有关项

顺次连接等腰梯形各边中点所成的四边形是（    ）

颅脑损伤患者急性期的康复治疗是

A．日常生活能力训练

B．再就业前的训练

C．防治以失用为主的并发症

D．步行训练

E．言语训练

洋地黄类药物的常见心血管系统毒性反应为各种心律失常，其中最常见的是()

A．窦性心动过缓

B．Ⅲ度房室传导阻滞

C．室性期前收缩多呈二联律、三联律

D．长期房颤者心律变得规律

E．室上性心动过速伴房室传导阻滞

简述含碳量3.2%的灰铸铁在平衡条件下按隐定相图结晶和组织转化的过程。

The growth of switching has (135) a new generation of network management tools that help (136) cope with the challenges, (137) them to correlate device alarms in order to (138) pinpoint root causes, or to monitor service levels without depending on IP subnet schemes. These new tools have become essential to coping with the primary (139) effect of any treatment that significantly increases network flexibility: added complexity.

A．technicians

B．workers

C．salesmen

D．professors