問題詳情
【題組】43
(A) The dopamine system also can be turned on by novelty.
(B) Current thinking points to genetics as the single strongest risk factor.
(C) But chronic use of these addictive drugs produces enduring changes in the brain.
(D) They hope these genes will be targets for designer drugs that one day will strike at addiction with precision.
參考答案
答案：C
難度：計算中-1
書單：沒有書單，新增