Spelling Bee is a contest       competitors, usually children, are asked to spell as many words as possible.

A．which

B．where

C．what

D．When

最可能的诊断是

A．右侧输卵管妊娠
B．难免流产
C．右侧卵巢囊肿蒂扭转
D．急性盆腔炎
E．急性胃肠炎