【单选题】病人,男性,25岁,3年来右上腹部节律性疼痛,进食可缓解,伴有反酸。一周前突然疼痛加重,伴有黑便,每日2-4次。引起该病人消化道出血的病因最可能是
【单选题】男性,60岁。粘连性肠梗阻5天,出现呼吸深快。查体:面部潮红,心率110次/分,血压90/60mmHg,腱反射减弱。化验:血pH7.20,血浆HCO-15mmol/L。如果输液后,病人出现手足抽搐,应立即静脉注射
【单选题】男性,25岁,3年来右上腹部节律性疼痛,进食可缓解,伴有反酸,1周前突然疼痛加重,伴有黑便,每日2~4次。
E.
消化性溃疡出血引起下列各例病人消化道出血的病因最可能是
【单选题】Architecture 1 Architecture is to building as literature is to the printed word. The best buildings are often so well constructed that they outlast their original use. They then survive not only as be...
B.
Need of Greater Building Varieties in Modem Life
C.
Restoration of Ancient Civilizations
E.
Factors Affecting Modem Architecture
F.
A Social Art Paragraph 2 ______ .
【单选题】已知轮系中各齿轮的齿数分别为Z1=20,Z2=35,Z3=10,Z4=30,Z5=60,试求此齿轮的传动比i15=( )。
【单选题】有一对传动齿轮,已知主动轮的转速 n 1 =1000r/min ,齿数 Z 1 =10 ,从动齿轮的齿数 Z 2 =50 ,那么从动轮的转速应当为 n 2 = r/min 。
【简答题】When the lazy days of summer arrive and the schedule is filled with swimming,camp,and family vacations,it can be a challenge to find time for learning. But kids’ reading skills don’t have to grow cold...
【多选题】Chinese architecture is about
C.
Christianity architecture
D.
confucianism architecture
【单选题】Architecture Architecture is to building as literature is to the printed worD.The best buildings are often so well constructed that they outlast their original use. They then survive not only as beaut...
B.
Need of greater building varieties in modern life
C.
Restoration of ancient Civilizations
E.
Factors affecting modern architecture