清末读书人张一山一直以来以参加科举、考取功名作为人生的奋斗目标，而从哪一年开始他的这个奋斗目标却再也无法实现了？
A．1840年
B．1895年
C．1905年
D．1912年
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在计算人口密度时所用的国家或地区面积，不包括无人居住的沙漠面积。
患者，男性，30岁，60kg，因晚饭后出门散步遭遇车祸入院。入院查体病人呼吸急促、烦躁不安、面色苍白，两侧瞳孔等大，两肺呼吸音对称、稍粗，BP85／45mmHg，脉搏细速，115次／min。腹肌紧张，全腹压痛反跳痛明显，右下腹穿刺抽出不凝血。
该病人的麻醉首选（）。
A.局麻
B.针麻
C.硬膜外阻滞
D.肋间神经阻滞
E.气管插管全麻
F.腰麻
多数肥胖，嗜睡，睡眠时很少醒觉，鼾声大，智力损害、晨起头痛、夜间遗尿，多有性功能障碍（）
A.原发性鼾症
B.上气道阻力综合征
C.发作性睡病
D.阻塞性睡眠呼吸暂停综合征
E.混合性睡眠呼吸暂停综合征
| Stress is with us all the time. It comes from mental or emotional activity as well as physical activity. It is unique and personal to each of us. So personal, in fact, that what may be relaxing to one person may be stressful to another. For example, if you’re a busy executive who likes to keep occupied all of the time, "taking it easy" at the beach on a beautiful day may be extremely frustrating, nonproductive, and upsetting. You may be emotionally distressed from "doing nothing." Too much emotional stress can cause physical illnesses such as high blood pressure, ulcers, or even heart disease. Physical stress from work or exercise is not likely to cause such ailments. The truth is that physical exercise can help you to relax and to better handle your mental or emotional stress. |
Physical problems caused by emotional stress can appear as all of the following EXCEPT ______.
A．ulcers
B．pregnancy
C．heart disease
D．high blood pressure
标定电子氧气检测仪器，使用电子气体检测仪检测（），氧气含量应为21%。
A.室外新鲜空气
B.标准浓度氧气
C.粮堆内空气
D.粮堆间空气