Nuclear science should be developed to benefit the people __

答案B
解析：rather than“而不是”.例如：We ought to check up rather than just accept what he says．我们该核实一下,不应只信他的话.
拓展：rather than相当于连词,连接两个相同成分.再比如：I,rather than you,am to blame．我,而不是你,该受责备.other than“除了”,相当于but,except.例如：In that case,there is nothing you can do other than wait．在那种情况下,除了等,你别无他法.