His breathing was steady.A:regular B:usual C:common D:ordinary

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问题 His breathing was steady.

选项 A:regular
B:usual
C:common
D:ordinary

答案A

解析本句意思:他呼吸平稳。steady稳定的,匀速的。regular有规律的,间隙均匀的;usual通常的,常有的;common普通的,常见的;ordinary普通的,平常的。
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