choice是choose的名词
choose和select：
choose指一般意义上的选择.例如：
He advised farmers to choose the best seed-heads. 他告诉农民要挑选最好的穗（留种）.
John tried on several jackets, and at last chose a very nice one. 约翰试穿了好几件甲克衫,最后选中了一件十分满意的.
select指“精选”, 即有所淘汰.例如：
He looked through the suits and selected the cheapest one for me. 他细细地翻看这些衣服,给我挑了一件最便宜的.
He has a copy of Selected Works of Mao Tse-tung. 他有一套《毛泽东选集》.
