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【单选题】
可以引起同胞间移植排斥反应的抗原属于A.
异种抗原
B.
同种异型抗原
C.
自身抗原
D.
异嗜性抗原
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反馈参考答案：
举一反三
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【简答题】Read the following two passages and fill in the blanks with the given words. 阅读下列文章,在空白处填上合适词汇的选项。 A. before B. more C. at D. careful E. that Flying on a plane can cost a lot of mo...
【简答题】Flying ona plane can cost a lot of money. Now is a good time to buy plane tickets at a low price. Many airlines( 航空公司) are selling 1 tickets. A woman from a news station says that there are good 2 now...
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