1966年瓦生设计了一项著名的瓦生选择作业或叫四卡片问题。以研究人在解决问题时的心理过程。通过大量重复施测，瓦生及其同事得出了一些值得商榷的结论。
In 1966 wason devised a famous wason's selection task or four-card problem to have one's mental process being probed when he is solving problems.
萨尔瓦多一年生产10万吨精炼铜。
El Salvador produces 100,000 tons of refined copper annually.
1936年，歌剧《无事生非》在莫斯科的瓦赫坦戈夫剧院上演，他为这个歌剧写了一系列的歌曲和小夜曲，正是这些乐曲使他一下子广为人知。
The music thatmade him most popular was the set of songs and serenades he wrote for the 1936production of “Much Ado About Nothing” at the Vakhtangov theatre in Moscow.
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