[多项选择]运用幽默的至高技艺要求我们保持冷静的头脑，临场应变，从容镇定，不慌不忙。如此才能妙语惊人，产生具有生命力的幽默。事事都求自然，幽默也是如此。有准备的幽默当然能应付一些场合，但难免有人工斧凿之嫌；临场发挥的幽默才更为技巧，更见风致。临场发挥是一种技巧，更是一种智慧，它需要冷静和睿智。在各种晚会、文艺演出中，许多主持人和演员临场应变、妙语惊人，给晚会的欢乐气氛推波助澜，也赢得了观众的掌声和喜爱。

参考答案:The top art of using humor requires us to keep cool- headed, so that we remain calm and composed, ready to cope with all contingencies. Only then can we come up with witty remarks and be truly humorous. Everything, if it is good, should be natural, and so is humor. We may prepare ourselves to behave humorously on certain occasions, but this will inevitably appear artificial; offhand humor, on the other hand, will display more skillfulness and gracefulness. To be humorous as occasion demands is an art and, moreover, is a wisdom that requires calmness and intelligence. It is this kind of humor that many hosts and actors make use of to add mirth and delight to the pleasant atmosphere of parties and performances, and to win the applause and love from the audiences.