—Look, Victor. This brown cat is ________ than that white one.

—Yes. And it is _____ of all these cats.

A．big; big

B．bigger; bigger

C．bigger; big

D．bigger; the biggest

在散打实战中意为要在敌无准备的状态下实施攻击，要在敌意想不到的情况下采取行动。应该做到（）。

A、沉着冷静，威猛并重

B、攻其无备，出其不意

C、知己知彼，百战不殆

D、摔打结合，灵活运用