电动机运转时间限制器动作后,恢复电梯正常运行只能通过手动复位。恢复断开的电源后,曳引机无需保持在停止位置。()
参考答案:对
All of the children want very much to read these story books, especially ______ you referred to just now. [ ]
A. any
B. it
C. the one
D. one
下列关于腹膜肿瘤的描述,错误的是()
A.常不发生腹水
B.继发性多来自腹内脏器肿瘤种植扩散
C.可发生于腹膜的壁或脏层以及系膜
D.肿瘤常呈板块状或结节状
E.原发性以腹膜间皮瘤为多见