皮皮学，免费搜题
登录
搜题
【单选题】
男性，42岁。1年来反复发作胸骨后疼痛，发作和劳累关系不大，面迎冷风疾走时或凌晨5时发作。发作时含硝酸甘油可缓解。平时心电图示Ⅱ、Ⅲ、aVF导联ST段水平压低0.75mm。发作时心电图正常。以下情况可发生心肌梗死，除了（）A.
冠状动脉内膜下出血使管腔闭塞时
B.
冠状动脉持续痉挛使管腔闭塞时
C.
原有冠状动脉病变严重发生室性心动过速
D.
当患者进食大量脂肪食物以后
E.
已建立充分的侧支循环的冠状动脉分支发生闭塞
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【简答题】You were at rest and a police car with its siren on was passing you with a constant speed. You found that the frequencies of the siren were respectively 550 Hzand 450 Hzwhen the police car was moving ...
【单选题】.-Did you attend the opening ceremony of The Voice of China last week? Sorry We ____it , but we had a terrible trafffic accident on our way.
A.
must have attended
B.
must attend
C.
could have attended
D.
could attended
【单选题】Read the Passage and complete four answers.The old conditions of travel and the new conditions of most travel of today are exactly opposite. For in old travel, as on horseback or on foot, you saw the ...
A.
the same as
B.
exactly the same as
C.
very different from
D.
exactly different from
【单选题】When we are cheerful, we talk faster, and the pitch of our voice rises.
A.
the degree of highness or lowness of a tone
B.
height, degree, or intensity
C.
the steepness of a slope, especially of a roof
相关题目：
参考解析：
知识点：
题目纠错 0
发布
