考博考试

【单选题】 Never has a scientific explanation emerged ______ someone somewhere has objected to it.
A．that
B．which
C．whom
D．but

网考网参考答案：D
网考网解析：
someone somewhere has objected to do it一句不缺任何成分，是完整的句子，只能用连词but连接。 查看试题解析出处>>