在估计红细胞生成有效方面,下面哪些指标较为准确()
A.网织红细胞相对值
B.网织红细胞绝对值
C.网织红细胞校正值
D.网织红细胞生成指数
E.红细胞计数
参考答案:D
根据汉语提示,完成句子。
1. My mother is ill. I am ______ ______ (担心) her.
2. The room is ______ ______ (挤满) people.
3. That sounds very good. I ______ ______ (赞同) you.
4. Running is a good way to ______ ______ (保持健康).
5. He doesn't get enough sleep. So he ______ _____ (看起来疲劳).
常用来做低温深冷工程的管道,在多种腐蚀介质中具有较高的稳定性且其纯度越高,耐腐蚀性越强的金属是( )。
A.铁 B.铝 C.镍 D.钛