50. According to the passage, which of the following is true about malaria parasites?
(A) They are resistant to genetic modification and vaccines.
(B) They reproduce in the human liver and grow stronger there.
(C) They can be found in only one gender of a class of mosquitoes.
(D) They are transmitted to around one million children each year.
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統計: A(13), B(19), C(47), D(8), E(0) #607140
統計: A(13), B(19), C(47), D(8), E(0) #607140