有关溶血性贫血,正确的说法是()
A.红细胞DNA合成障碍
B.缺乏促红细胞生成素
C.可见嗜多色性红细胞
D.红细胞表面积与体积的比例增大
E.网织红细胞升高
参考答案:C, E
在400米的环形跑道上,张强每分钟跑320米,李娜每分钟跑280米,张强、李娜同时地同向出发,t分钟首次相遇,则t=______.
—It is selfless the most beautiful teacher—Yang Xiangming to lose his life the child in the river.
—I think so, he is so great.
A.for; to save
B.of; to save
C.for; to saving
D.of; to saving