题目内容

3. The authorwas proud of herself for constantly stepping out of her comfort zone and embracing the unknown when was onher trip across Canada and the United States.

A. 对
B. 错

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4. The author wanted to have a nest because she had a terrible experience in Vancouver.

A. 对
B. 错

漏斗胃管洗胃法利用的原理是:

A. 虹吸原理
B. 平衡原理
C. 空吸原理
D. 排空原理
E. 以上都不是

实施BLS技术判断大动脉消失，其首选部位是:

A. 桡、尺动脉
B. 股动脉
C. 颈动脉
D. 足背动脉
E. 肱动脉

急性肺水肿病人吸氧时湿化液内的乙醇浓度是:

A. 10%～20%
B. 20%～30%
C. 30%～40%
D. 30%～40%
E. 40%～50%