--Which of these two sweaters will you take?

--I’ll take     . They look nearly the same, and I just need one.

A．both

B．Either

C．None

D．all

10个月小儿，阵发性哭闹，伴呕吐，黏液血便，右下腹可触及腊肠样包块，最可能的诊断：()

A．先天性巨结肠

B．急性肠套叠

C．急性坏死性小肠结肠炎

D．细菌性痢疾

E．先天性肠扭转不良