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为了弄清一个想法,885-80
80. Two valence states of uranium, one with a deficit of four electrons and the other one with a deficit of six, occurs in nature and contributes to the diversity of uranium’s behavior. (A) the other one with a deficit of six, occurs in nature and contributes (B) the other one a deficit of six, occur in nature and contribute (C) the other with a deficit of six, occurs in nature and contributes (D) the other with a deficit of six, occur in nature and contribute (E) one with six, occurs in nature and contributes 这题我做对了,不过我想知道B措是否因为多出的one会有歧义? |
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