【单选题】Aspirin is one of the safest and most effective drugs invented by man. The most popular medicine in the world today, it is an effective pain reliever. Its bad effects are relatively mild. It is also c...
【单选题】Aspirin is one of the safest and most effective drags invented by man. The most popular medicine in the world today, it is an effective pain reliever. Its bad effects are relatively mild. It is also c...