问题
多项选择题
目前常用的非血缘脐带血选择标准是（）
A.人类白细胞抗原（HLA.-A、B和DRB1血清学配型4～6/6相合
B.HLA-A、B血清学配型，HLA-DRB1基因配型4～6/6相合
C.有核细胞数/受者体重
D.CD34（+）细胞数/受者体重
E.细胞活性
答案
参考答案：B, C, D
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目前常用的非血缘脐带血选择标准是（）
A.人类白细胞抗原（HLA.-A、B和DRB1血清学配型4～6/6相合
B.HLA-A、B血清学配型，HLA-DRB1基因配型4～6/6相合
C.有核细胞数/受者体重
D.CD34（+）细胞数/受者体重
E.细胞活性
参考答案：B, C, D
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| Food is important. Everyone needs to 1 well if he wants to have a strong body. Our minds also need a kind of food. This kind of food is 2 .We begin to get knowledge even when we are young. Small children are 3 in everything around them. They learn somrthing while they 4 and listening. When they are getting older they begin 5 storybooks, science books...anything they like. When they find 6 , they have to ask questions and try to get the answers. What is the best 7 to get knowledge?If we learn by ourselves, we 8 the most knowledge. If we are 9 getting answers from 10 and don't ask why, we will never learn more or understand better.
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