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.
A. apart; rather
B. apart, but rather
C. apart, but rather that of
D. apart, but that of
E. apart; it is that of
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发表于 2017-10-6 11:59:58
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