下列哪种贫血属于典型小细胞低色素贫血（）
A.珠蛋白生成障碍性贫血
B.再生障碍性贫血
C.溶血性贫血
D.巨细胞性贫血
E.缺铁性贫血
参考答案：E
_______,but it is also a great way to lower the number of greenhouse gases in the air.
A．Not only a fun thing is it to do
B．Not only a fun thing to do it is
C．Not only it is a fun thing to do
D．Not only is it a fun thing to do
学生发展的可能性和可塑性转变为现实性的条件是______。
