[計量] either or的意義
想要請教一下either A or B的意思
是說A,B之中任選A或B嘛？
如果這樣AB兩個都選有符合either A or B的意義嘛？
如例題:
Ben and Ann are among 7 contestants from which 4 semifinalists are to be
selected. Of the different possible selections, {how many contain either
Ben or Ann?}
如果括號內換成how mnay contain only one of Ben or Ann?
答案就不一樣了！！
謝謝大家不吝賜教
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