One problem of using pig organs on humans is
A.the size of the pig organs.
B.the quick rejection of the transplant by human bodies.
C.the speed of their maturity.
D.the technical complexity of the operational process.
第8题
A.细胞间粘附分子(ICAM)
B.内皮细胞-白细胞粘附分子(ELAM)
C.血管细胞粘附分子(VCAM)
D.β2整合素(CD11/CD18)
E.P-选择素
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