C.can’t form blood themselves
D.grow problematic cells
答案:D
解析:细节理解题。根据第四段中的“...when a woman who has rhesus-negative blood produces antibodies that destroy her babies’ cells”可知,当溶血性疾病发生时,母亲血液中的抗体会进入胎儿体内破坏胎儿的细胞,导致胎儿出生后有些细胞有缺陷。
26.Harrison’s blood can .
A.help patients develop Anti-D
B.avoid the risk of rhesus disease
C.cure rhesus disease affected babies
D.stop babies from producing antibodies
答案:B
解析:细节理解题。根据第五段中的“Harrison’s blood helped physicians develop an injection called Anti-D in the 1960s,which prevents women who have rhesus-negative blood from developing the harmful antibodies while pregnant”可知,基于Harrison血液的注射剂可以防止孕妇产生影响胎儿的抗体,避免溶血性疾病的发生。
27.Before Mellowship was injected Anti-D,her family didn’t .
A.understand the meaning of Harrison’s act
B.expect she would have another healthy son
C.realize the high rate of potential rhesus disease
D.know Harrison held a record for donating blood
答案:A
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