缺铁性贫血常见病因
A.慢性肝炎B.慢性胃炎C.慢性溶血D.慢性感染E.慢性失血
参考答案:E
Brave New World describes a promising future _______ there is no war or violence and all the people can live happily.
A.where
B.which
C.that
D.whom
西北地区和青藏地区的自然环境特征组合正确的是( )
A.高温 多雨
B.寒冷 干燥
C.干旱 高寒
D.高寒 干旱