单选题 His speech was careful and______but his words seemed to make no sense.
【正确答案】 A
【答案解析】解析:句意:他的发言谨慎、清楚,但似乎没有任何意义。distinct意为“清楚的”,符合句意。distinctive“与众不同的”;distinguished“高贵的,尊贵的”;distinguishable“可区别的”。