【单选题】
According to the author, swans in captivity are ______.
A.happy unless their wings have been cut
B.happy most of the time, but unhappy sometimes
C.unhappy most of the time
D.only happy when they are bringing up families
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根据网考网考试中心的答案统计,该试题:
11%的考友选择了A选项65%的考友选择了B选项6%的考友选择了C选项18%的考友选择了D选项