【简答题】THANK-you cards-heartfelt expressions of gratitude for gifts, services and general kindness-seem to be rare in an age when the Internet continues to reduce human touch. Although our society has change...
【简答题】In 1838 the polical economist Malthous predicted that in time mankind would face starvation, having outgrown the available food supplies. Today, a century and a half later, there are still experts who...