單項選擇題

以下除哪一項外,均屬正常月經(jīng)()

A.月經(jīng)周期26天,行經(jīng)7天
B.月經(jīng)周期32天,行經(jīng)3天
C.月經(jīng)周期28天,行經(jīng)5天,伴有輕度小腹脹墜,腰骶痛重
D.月經(jīng)周期30天,經(jīng)血總量約70毫升,乳房脹痛,情緒不穩(wěn)定
E.月經(jīng)周期20天,行經(jīng)5天

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