【名词&注释】
阑尾炎(appendicitis)
[单选题]When voltage and current developed in an AC circuit reach their peak values at the same time, the power factor is _____.
A. lagging
B. leading
C. maximum
D. minimum
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学习资料:
[单选题]急起而短暂的脑部血液供给不足出现()。
A. 休克
B. 昏迷
C. 昏厥
[单选题]搬动胸、腰椎外伤病员,如只有帆布担架,病人的姿势只能()
A. 仰卧
B. 俯卧
C. 侧卧
D. 坐卧
[单选题]水疱型烧伤,根据烧伤分类是:
A. Ⅰ度
B. Ⅱ度
C. Ⅲ度
[单选题]Which of the following conditions could contribute to the cracking of a diesel engine cylinder head?
A. Leaking seal ring
B. Insufficient heat transfer from the exhaust valves
C. Blocked cooling water passages to the head
D. Excessive scavenging air provided to the engine
[单选题]对于诊断未明的阑尾炎,以下哪种说法是错的?
A. 应密切观察病情发展
B. 反复检查腹部体征
C. 用度冷丁止痛
D. 可采用针炙止痛
[单选题]在使用自动舵的航向改变调节时,如需改变较大航向应分次进行,一般每次只改变()。
A. 5°
B. 10°
C. 15°
D. 20°
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