【多选题】On a routine visit to the physician, an otherwise healthy 51-year-old man has a blood pressure of 150/95 mm Hg. If the patient's hypertension remains untreated for years, Which of the following cellul...
【单选题】If cerebral perfusion is below 70mmHg in an adult(threshold levels have not been determined for children), alpha agonists such as norepinephrine can be used to raise mean arterial blood pressure and t...
A.
如果脑灌注压在成人中低于 70mmHg: 儿童的阈值水平尚未确定,受体激动剂如去甲肾上腺素可用來提高平均动脉压和增加脑灌注压。
B.
如果成年人的脑灌注压低于 70mmHg: 儿童的阈值水平尚未确定,那么受体激动剂如去甲肾上腺素就可以用来提高患者平均动脉压,从而增加脑灌注压 。
【判断题】switch语句的case分支可以使用复合语句、多个语句序列。
【单选题】If the partial pressure of oxygen in alveolar air is 100 mmHg and the concentration of dissolved oxygen in capillary blood arriving at the alveoli is 40 mmHg, what will be the concentration of dissolv...
【单选题】我国高速铁路隧道的线间距目前暂定为()。