ABC是典型的ETS错误嘛,即“merging the nuclei of atoms rather than splitting them apart”搞不清是修饰前面的nuclear fushion 还是后面的nuclear reactors啊,因为这个状语从句既可以表示nuclear fushion “merging the nuclei of atoms rather than splitting them apart”也可以nuclear reactors“merging the nuclei of atoms rather than splitting them apart” 另外本人是有保留的相信-ing就近修饰的,因为有太多例外了.......
Correct. Rather than is a correct idiom for comparison in this sentence; as is followed by a clause with a subject, nuclear reactors, and a verb, do; the comparison is clear and complete.
Illogical and awkward construction incorrectly makes merges the second verb of the restrictive clause and a separate action parallel to powers; comparison is awkwardly drawn; switch from nuclear to atomic is unexplained and unsupported