The gene therapy differs from HAART in that______.A．HAART is presently employed as a drug－
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The gene therapy differs from HAART in that______.
A．HAART is presently employed as a drug-based treatment
B．the gene therapy plays a minor role in relation to HAART
C．the gene therapy can stop HIV infection from becoming full-blown AIDS
D．HAART may produce questionable results, while gene therapy will certainly not
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正确答案：A
解析：文章第六段“最近的研究表明，HAART是一种昂贵的药物疗法”。因此A “目前，HAART是以药物为基础的疗法”是HAART与基因疗法的区别所在。B 基因疗法与HAART有一点联系C 基因疗法能够阻止艾滋病病毒引起全面的艾滋病病发；D HAART可能会产生令人怀疑的结果，而基因疗法肯定不会。