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【单选题】
男性，68岁。陈旧性前壁心肌梗死5年，劳累后心悸、气短3年，双下肢浮肿半年。近1气短加重，体力活动明显受限，从事一般家务活动即感喘憋。入院时心电图与2个月前相比无变化。该患者的心功能分级为( )A.
NYHA分级
B.
NYHA分级Ⅲ级
C.
Killip分级Ⅱ级
D.
Killip分级E级
E.
Killip分级Ⅳ级
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举一反三
【简答题】运动员在进行长距离游泳训练时,由于游泳池场地限制,常需掉头,影响训练的持续性。如何进行小池子的长距离游泳改造?
【单选题】The most common cause of intracranial hemorrhage in premature infants is
A.
ischemia and hypoxia
B.
rapid input of hypertonic liquid（高渗液体）
C.
The birth injury during delivery
D.
vascular malformation（血管畸形）
E.
infection
【单选题】Premature infants have apnea, mainly because of
A.
relatively small number of alveoli（肺泡）
B.
The respiratory center is relatively immature.
C.
few alveolar surfactant
D.
Intercostal(肋间肌) muscle weakness
E.
high position of diaphragm （膈肌）
【单选题】Premature infants are
A.
newborns with gestational age greater than 37 weeks and less than 42 weeks and weight more than 2500g
B.
newborns with gestational age greater than 37 weeks and weight less than 2500g
C.
newborns with gestational age greater than 37 weeks and weight more than 2500g
D.
newborns with gestational age less than 37 weeks
E.
newborns with gestational age of 37 weeks
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