[填空题] 新生儿死亡原因中以_______、_______、_______、_______、和_______等最为常见。

有关脊麻时低血压的原因，哪项正确() ["A．阻滞交感神经节前纤维","B．阻滞支配肾上腺髓质的神经","C．阻滞副交感神经纤维","D．肌肉松弛","E．术前脱水"] 妇科病疼痛多见()胃病疼痛多见() ["胸痛","胁痛","脘痛","腰痛","腹痛"] 新生儿上部量与下部量的比较，中点在_____，2岁时在_____。______岁时上下部量相等，中点在________上。 气滞致痛多为()精髓空虚致痛多为() ["灼痛","窜痛","绞痛","空痛","酸痛"] 下列哪种药不延长或稍延长脊麻作用时间() ["A．苯肾上腺素","B．肾上腺素","C．去甲肾上腺素","D．甲氧明","E．麻黄碱"] 新生儿死亡原因中以_______、_______、_______、_______、和_______等最为常见。