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【简答题】
人类免疫缺陷病毒( HIV )有高度变异性,感染机体后可损伤多种免疫细胞,并通过多种机制逃避免疫系统识别和攻击。下列相关叙述错误的是 A . HIV 感染人群比健康人群更易患甲型 H1N1 流感 B . HIV 的高度变异性,致使疫苗效果难以持久 C . 被 HIV 潜伏感染的细胞表面没有 HIV 蛋白,利于病毒逃避免疫系统识别和攻击 D . HIV 破坏免疫系统,机体无体液免疫应答,不能通过检测抗体来诊断 HIV 感染
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举一反三
【单选题】The doctor ’ s speech was very interesting,when he hurriedly got to the lecture hall,he was told that there were no ____ left in the hall.
A.
places
B.
seats
C.
space
D.
room
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【单选题】, the guest speaker was ushered into the auditorium hall to give the lecture.
A.
Being shown around the campus
B.
Having shown to the campus
C.
Having been shown around the campus
D.
After been shown around the campus
查看完整题目与答案
【单选题】The students were to ______ at the lecture hall before 1:30 p.m. but the lecture was cancelled at the last minute.
A.
having assembled
B.
be assembled
C.
have assembled
D.
have been assembled
查看完整题目与答案
【单选题】不稳定型心绞痛与稳定型心绞痛的差别主要在于
A.
产生痛觉的直接因素
B.
冠脉内不稳定的粥样硬化斑块继发病理改变，使局部心肌血流量明显下降
C.
冠脉狭窄程度
D.
心肌耗氧增加
E.
血管痉挛
查看完整题目与答案
【单选题】患者男性，58岁。患者半年前登山时出现心前区疼痛，为压迫样，持续1～2分钟并向左肩、左背放射，停止活动自行缓解。以后每当劳累和工作紧张均可诱发，含硝酸甘油可缓解。一月前心前区疼痛发作频繁并加重，发作时间较前延长，轻微活动就可诱发，含硝酸甘油效果欠佳。发现高血压史五年，服药治疗效果不理想，无糖尿病史。查体BP200／120mmHg，心肺没发现异常，心电图ST段下移0.1mm。父母有高血压史。不稳定型...
A.
产生痛觉的直接因素
B.
冠脉内不稳定的粥样硬化斑块继发病理改变，使局部心肌血流量明显下降
C.
冠脉狭窄程度
D.
心肌耗氧增加
E.
血管痉挛
查看完整题目与答案
【单选题】稳定型心绞痛与不稳定型心绞痛的差别主要在于
A.
胸痛持续的时间不同
B.
胸痛的严重程度不同
C.
胸痛发作的诱因不同
D.
发生的机制不同
E.
胸痛缓解的方法不同
查看完整题目与答案
【单选题】Class was over and students_______out of the lecture hall.
A.
sipped
B.
spilled
C.
skipped
D.
stretched
查看完整题目与答案
【单选题】The lecture hall______ by Doctor Li in the 1980s can contain at most 6,000 people.
A.
set up
B.
was set up
C.
is set up
D.
setting up
查看完整题目与答案
【单选题】— Where did you find the coat? — It was ____ the lecture hall ____ we held the English Competition. [     ]
A.
in; that
B.
/; where
C.
/; that
D.
in; where
查看完整题目与答案
【简答题】【案例】患者男性，58岁。患者半年前登山时出现心前区疼痛，为压迫样，持续1～2分钟并向左肩、左背放射，停止活动自行缓解。以后每当劳累和工作紧张均可诱发，含硝酸甘油可缓解。一月前心前区疼痛发作频繁并加重，发作时间较前延长，轻微活动就可诱发，含硝酸甘油效果欠佳。发现高血压史五年，服药治疗效果不理想，无糖尿病史。查体BP200/120mmHg，心肺没发现异常，心电图ST段下移 0.1mm。父母有离血压史...
查看完整题目与答案
相关题目：
【单选题】The doctor ’ s speech was very interesting,when he hurriedly got to the lecture hall,he was told that there were no ____ left in the hall.
A.
places
B.
seats
C.
space
D.
room
查看完整题目与答案
【单选题】, the guest speaker was ushered into the auditorium hall to give the lecture.
A.
Being shown around the campus
B.
Having shown to the campus
C.
Having been shown around the campus
D.
After been shown around the campus
查看完整题目与答案
【单选题】The students were to ______ at the lecture hall before 1:30 p.m. but the lecture was cancelled at the last minute.
A.
having assembled
B.
be assembled
C.
have assembled
D.
have been assembled
查看完整题目与答案
【单选题】不稳定型心绞痛与稳定型心绞痛的差别主要在于
A.
产生痛觉的直接因素
B.
冠脉内不稳定的粥样硬化斑块继发病理改变，使局部心肌血流量明显下降
C.
冠脉狭窄程度
D.
心肌耗氧增加
E.
血管痉挛
查看完整题目与答案
【单选题】患者男性，58岁。患者半年前登山时出现心前区疼痛，为压迫样，持续1～2分钟并向左肩、左背放射，停止活动自行缓解。以后每当劳累和工作紧张均可诱发，含硝酸甘油可缓解。一月前心前区疼痛发作频繁并加重，发作时间较前延长，轻微活动就可诱发，含硝酸甘油效果欠佳。发现高血压史五年，服药治疗效果不理想，无糖尿病史。查体BP200／120mmHg，心肺没发现异常，心电图ST段下移0.1mm。父母有高血压史。不稳定型...
A.
产生痛觉的直接因素
B.
冠脉内不稳定的粥样硬化斑块继发病理改变，使局部心肌血流量明显下降
C.
冠脉狭窄程度
D.
心肌耗氧增加
E.
血管痉挛
查看完整题目与答案
【单选题】稳定型心绞痛与不稳定型心绞痛的差别主要在于
A.
胸痛持续的时间不同
B.
胸痛的严重程度不同
C.
胸痛发作的诱因不同
D.
发生的机制不同
E.
胸痛缓解的方法不同
查看完整题目与答案
【单选题】Class was over and students_______out of the lecture hall.
A.
sipped
B.
spilled
C.
skipped
D.
stretched
查看完整题目与答案
【单选题】The lecture hall______ by Doctor Li in the 1980s can contain at most 6,000 people.
A.
set up
B.
was set up
C.
is set up
D.
setting up
查看完整题目与答案
【单选题】— Where did you find the coat? — It was ____ the lecture hall ____ we held the English Competition. [     ]
A.
in; that
B.
/; where
C.
/; that
D.
in; where
查看完整题目与答案
【简答题】【案例】患者男性，58岁。患者半年前登山时出现心前区疼痛，为压迫样，持续1～2分钟并向左肩、左背放射，停止活动自行缓解。以后每当劳累和工作紧张均可诱发，含硝酸甘油可缓解。一月前心前区疼痛发作频繁并加重，发作时间较前延长，轻微活动就可诱发，含硝酸甘油效果欠佳。发现高血压史五年，服药治疗效果不理想，无糖尿病史。查体BP200/120mmHg，心肺没发现异常，心电图ST段下移 0.1mm。父母有离血压史...
查看完整题目与答案