患者，男，36岁。因大叶性肺炎遵医嘱予以青霉素注射治疗。注射前询问得知，患者以前从未用过青霉素，则为患者做青霉素过敏试验后应观察（）分钟。
A. 5分钟
B. 10分钟
C. 15分钟
D. 20分钟
E. 30分钟
查看答案
静脉留置针的进针角度是
A. 15°~30°
B. 20°~30°
C. 45°
D. 30°~40°
E. 5°
What is the greatest disadvantage of “giving and receiving” system?
What is the reason for the proposal of publicly honoring organ donors?
What is the primary goal of publicly compensating individuals for donating their organs?
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