The breathing spell provided by the ___ arms shipments should give all the combatants a chance to reevaluate their positions .

A plethora of

B moratorium on

C reciprocation of

D concentration on

E development of

选B

翻译：武器补给期间双方暂时停火，这大概给了每个参战的人片刻喘息，以重新审视自己的立场。

词汇题。

spell (某事物持续的)一段时间

plethora 过多，过剩

moratorium 暂停，中止(尤指经官方同意)

reciprocation 互换，互惠，往复运动