翼型弦线与相对气流之间的夹角().
A. 桨叶角
B. 来流角
C. 迎角
D. 锥度角
Both bus and tree topologies are characterized by the use of multipoint (1).For the bus, all stations attach, through appropriate hardware (2) known as a tap, directly to a linear transmission medium, or bus. Full-duplex operation between the station and the tap allows data to be transmitted onto the bus and received from the(3). A transmission from any station propagates the length of the medium in both directions and can be received by all other (4). At each end of the bus is a (5) , which absorbs any signal, removing it from the bus.空白(4)处应选择()
A. routers
B. stations
C. servers
D. switches
男性,17岁,近半月低热37.8C,讲话含糊,情绪易激惹,对父母态度粗暴,有时打骂,胡言乱语,自笑,乱窜病室,抽搐一次,有二便失禁。躯体检查:T37.5C,P100次/分,BP140/90mmHg。下肢肌张力增高,右侧巴氏征(+),克氏征(-)。CSF:潘氏阳性,精神检查:意识模糊,表情呆滞,言语减少,偶有一言半语,称父母是“后爹娘”,无故自笑。头部CT正常,脑电图示弥漫性δ波以额颞为主,有阵发性尖波发放。该患者最可能的诊断是()
A. 病毒性脑炎所致精神障碍
B. 精神分裂症
C. 脑肿瘤所致精神障碍
D. 癔症
E. 癫痫性精神障碍
男孩,3岁6个月,因发热18小时,伴皮疹1小时入院,病程中呕吐3次,伴神萎、尿少,于1月20日入院,查体:T39.5℃,BP68/30mmHg,嗜睡状,面色青灰,唇周发绀,心率128次/分,心律齐有力,双肺呼吸音清晰,腹不胀,软,无压痛,臀部及下肢见散在瘀斑、瘀点,以臀部为主,四肢膝关节、肘关节以下凉,见大理石花纹,颈阻力(+),布氏征(-),克氏征(-),巴氏征(-)。临床诊断为流行性脑脊髓膜炎。对于该患儿最重要的抢救措施为()
A. 降温
B. 抗休克
C. 抗感染
D. 降颅内压
E. 镇静
F. 止血