The energy source on Voyager 2 is not a nuclear reactor, in which atoms are actively broken apart; rather a kind of nuclear batt

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问题 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.

选项 A、apart; rather
B、apart, but rather
C、apart, but rather that of
D、apart, but that of
E、apart; it is that of

答案B

解析 C、D、E中that of属多余,它们的加入会导致句意无法理解。因为that指代anuclear reactor,把其代入C、D、E,就成为a nuclear reactor of a kind of nuclear battery,不知所云。且E中省去but,用分号连接,弱化了转折语气。A rather单独出现只能作为形容词,与本句句意不符,要表示转折需要与than或but连用才正确。
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本试题收录于: GMAT VERBAL题库GMAT分类
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