公共英语考试

【单选题】 According to the passage, the author considers the reduction of energy in an empty region of space to which a real particle has been added to be
A．a well-known process.
B．a frequent occurrence.
C．a fleeting aberration.
D．an unexpected outcome.

网考网参考答案：D
网考网解析：
[解析]文章第二段第三行提到了：a surprising result。因此，an unexpected outcome与之相等。故应选D。 查看试题解析出处>>