第23题: [单项选择]The gene therapy can curb HIV infection by______. A. helping healthy cells withstand the ravages of HIV virus B. completely stopping the infected cells from spreading C. considerably inhibiting the tat gene from working D. isolating HIV virus from the healthy cells 参考答案:C 答案解析:基因疗法是怎样阻止艾滋病病毒感染的 根据文中第二段“researchers based…from infected cells.”可知是通过阻止tat基因起作用来达到这一目的的,因此[C]正确。[A]