One more word，__________ I'll knock you flat．A.orB.andC.thenD.but
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B解析“祈使语气+and”是将条件包含在普通的祈使句中，用and来下结论的表达法.例如：Turn to the right and you will see the house．向右转弯，你就可以看见那座房子了.Talk less and work more, and your success will be assured．少讲话多做事，你们一定成功.Give him an inch, and he'll take a mile．他是得寸进尺的.在祈使句中有时将动词略去，仅保留强势语，用and跟主句相接，成“名词+and...”的形式.