单选题：What should be done immediately after the matched donor has

题目分类：专四
题目类型：单选题
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题目内容：

What should be done immediately after the matched donor has been found? A．Unhealthy cells of the patient are killed through radiation or chemotherapy．
B．Healthy cells are extracted from the donor．
C．Extracted cells are prepared in the laboratory．
D．The donor's cells are transplanted to the patient．

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答案解析：

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分类：专四题型：单选题