In the foreign trade business, the trade terms CFR is often used. CFR is the abbreviation for （）.

A. Commercial Invoice

B. Cost, insurance and freight

C. Cost and freight

D. Carriage paid to

女孩，10天，生后5～6天起有多次呕吐，含胆汁，今起呕吐频繁，伴2次紫暗色血便，考虑可能诊断是（）。

A.出血性坏死性小肠炎

B.巨结肠肠炎

C.感染性腹泻

D.肠旋转不良伴肠扭转

E.肠套叠