【题目】The medicine takes effect in the __________ stage of treatment, but the effect declines when it is taken for several months.
A. potential B. terminal C. normal D. initial
在线课程【答案】D
【解析】
考查形容词辨析。句意：这种药在治疗初期起效，但几个月后效果就下降了。A. potential潜在的；B. terminal末端的，终点的；C. normal 正常的；D. initial最初的。此处指最初阶段，故选D.