电动操舵装置的特点是:()
①、结构简单;②、操作简便;③、工作可靠;④、适用于各类船舶
A.①、②、③
B.①、②、④
C.②、③、④
D.①、③、④
参考答案:A
When the stranger was dragging him away, the baby reached out his hands in ______ want of his mother. [ ]
A. curious
B. desperate
C. sincere
D. serious
男性,48岁。查体时B超检查发现左侧肾下极有一4.5cm×3.2cm实性占位,肾门处有一直径1.5cm的肿物。静脉肾盂造影:两肾无异常改变。
术前磁共振(MRI)检查发现肾静脉内有栓塞,此时手术方式宜采取()
A.放弃手术,进行放疗
B.根治性肾切除,同时切除癌栓
C.姑息性肾切除
D.姑息性肾切除+化疗
E.姑息性肾切除+放疗