正常心电轴的范围是()
A.+30°~+90°
B.-30°~+90°
C.0°~+30°
D.+90°~+180°
E.0°~+60°
参考答案:B
. It is a ___________in western societies that women get married in long white dresses.
A.curiosity
B.tradition
C.strength
D.signal
男性,28岁。周期性中上腹痛5年余,多于饥饿时痛,时有夜间痛醒,进食后缓解,常有反酸、嗳气。近2d大便呈柏油状,伴头昏、乏力就诊。体检:血压12/8kPa,心率104次/分,腹软,上腹部轻度压痛,肝脾肋下未扪及,肠鸣音活跃,最可能的诊断是()
A.胃溃疡合并出血
B.十二指肠球部溃疡合并出血
C.胃癌合并出血
D.食管静脉曲张破裂出血
E.急性胃黏膜病变