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题库 / OG12-SC-92
The energy source on Voyager 2 is not a nuclear reactor, in which atoms are actively broken apart; rather a kind of nuclear battery that uses natural radioactive decay to produce power.
apart; rather
apart, but rather
apart, but rather that of
apart, but that of
apart; it is that of
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The correct version of this sentence focuses on a contrast by using the construction //not x, but rather y//.
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