单选题
On modern ships, centrifugal pump with a self-primer has replaced reciprocating pump as bilge pump because（）
发布日期：2021-03-22
centrifugal pump is cheaper than reciprocating pump
the size of centrifugal pump with same capacity is smaller than that of reciprocating pump
centrifugal pump makes maintenance easier than reciprocating pump does
all of the above
题王网让考试变得更简单
扫码关注题王，更多免费功能准备上线！
此试题出现在
在对防火门的检查中表述不正确的是（）。
男性病人，72岁。无痛间歇性血尿2年，反复左肋隙部剧痛3个月。膀胱镜检查膀胱侧壁三角区散在菜花状肿瘤带蒂。左输尿管口喷血。该病人的手术方案（）
脊髓半侧损害（Brown-Sequardsyn-drome）所出现的感觉障碍，表现为受损节段平面以下（）
女，31岁，阴道分泌物增多伴尿频、尿急、尿痛2天。妇科检查：外阴充血明显，阴道口、阴道及宫颈管多量脓性分泌物，宫颈充血、水肿、触痛明显，子宫及双侧附件区压痛（±）。该患者最有意义的病史是（）
电动机的工作方式分为几类？各有何特点？
关于带电子现金的IC借记卡开户，下列说法正确的是（）。
微观经济学
女性，48岁，既往有高血压病史，突然出现剧烈胸痛，呈撕裂状，累及胸骨后及上腹部，伴大汗，持续1小时不缓解。查体：血压200／110mmHg，心率90次／分，心肺无异常，心电图：左室高电压伴V4～V6ST段压低0．1mV本病例最可能的诊断是（）
蜘蛛痣最常见的部位是（）
在台基上建汉白玉栏杆，用于大式建筑的是（ ）。
暂无相关推荐~
On modern ships, centrifugal pump with a self-primer has replaced reciprocating ...
On modern ships, centrifugal pump with a self-primer has replaced reciprocating ...
Modern ships are navigated by（）（卫星）.
With the help of modern technology, ships are able to receive automated broadcas...
With the help of modern technology, ships are able to receive automated broadcas...
- Does modern logistics mean transportation and delivery？- Modern logistics is m...
- Does modern logistics mean transportation and delivery？- Modern logistics is m...
（）is not used in modern radar.
An example of a modern anchor which has a stock is a(n)（）.
A multistage centrifugal pump can be BEST described as having （）.