参考答案

正确答案：A
解析：名词辨析stint定额工作：Make sure you do your stint；don’t leave it all to the others．务必要把分配给你的那份工作做完，不要都留给别人做。A．spell(指与某种活动、事件有关的)连续不断的一段时间，轮班的时间：I did a spell in the army before I became a policeman．我在成为警察之前曾在军队干过一段时间。B．sling投石器，钩悬带：He had to keep his broken arm in a sling．他不得不把断胳膊固定在吊带上。C．sting刺痛，针刺：The red spot on his arm is a sting．他胳膊上的小红点是虫叮的伤痕。D．stink臭味：What a stink!真臭!