题目内容

A．Their genetics.B．Their size.C．What they look like.D．The amount of energy they need.

A. Their genetics.
B. Their size.
C. What they look like.
D. The amount of energy they need.

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It is very difficult to apply for a passport as it requires many specific rules.

A. Y
B. N
C. NG

A．The color of the pullover has faded.B．The pullover became smaller after washing.C．Th

A. The color of the pullover has faded.
B. The pullover became smaller after washing.
C. The pullover was want out.
D. The pullover has stretched.

男性，60岁，因3年来渐进性加重的活动后心悸、气短，无心前区疼痛，半年来不能平卧；伴下肢浮肿、腹胀、尿少来诊。30年前曾有血压高，未治疗。无关节痛史，吸烟40年。查体血压148/90mmHg，半卧位，颈静脉明显充盈，双肺底均可闻水泡音，心界明显向左扩大，心尖部可闻3/6级收缩期吹风样杂音，心律整，心率103次/分，S.减弱，肝肋下2.0cm，肝颈反流征()，双下肢水肿()。
根据上述临床资料分析，可基本排除的诊断是

A. 风湿性心脏瓣膜病
B. 冠心病
C. 高血压病
D. 扩张型心肌病

女性，25岁，未婚，半年来乏力，面色苍白，1周来加重，既往有十二指肠溃疡病5年。化验血Hb75g/L，RBC3.5×1012/L，WBC5.5×109/L，PLT325×109/L，诊断为缺铁性贫血。
下列致病原因中，最不可能的是

A. 月经过多
B. 消化道失血
C. 偏食
D. 需铁量增加