患者，女性，27岁。月经增多6个月，以缺铁性贫血收入院。最主要

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问题单项选择题

患者，女性，27岁。月经增多6个月，以缺铁性贫血收入院。最主要的治疗措施是

A．铁剂治疗
B．止血药物治疗
C．病因治疗
D．输血输液，补充血容量
E．富铁食物饮食治疗

答案

参考答案：C

单项选择题

What was one result of the increased use of machinery on farms of the United States

A．Prices for farm produce rose.

B．Farmers became more dependent on loans from banks.

C．Jefferson established government programs to assist farmers.

D．Farmers relied less on foreign markets.

名词解释

可逆与不可逆多晶转变