A. 阴道出血伴有子宫收缩 B. 腹部剧痛伴有少量阴道流血 C. 反复无痛性阴道流血 D. 两次人工流产史 E. 急性腹痛伴血压降低
A. no better than B. better than C. as good as D. as well as
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