just then ,the telephone rang .it rang___.A.at once B.immediately C.at that moment选那一个,理由是什马

just then ,the telephone rang .it rang___.A.at once B.immediately C.at that moment选那一个,理由是什马
just then ,the telephone rang .it rang___.A.at once B.immediately C.at that moment
选那一个,理由是什马

just then ,the telephone rang .it rang___.A.at once B.immediately C.at that moment选那一个,理由是什马
选B 意思是：就在那时,电话响了,突然就响了.
A马上,立刻 B突然 C那时
综上所述,只有B项更符合.

B.表示电话响得很“突然”。选A的话表示“立刻，马上”，不符合。C的话重复了