销售的专业行为：包括礼仪、做事情的条理性、说话的严谨和机敏等。
Marketing professional behavior: including etiquette, doing things clear-headedly, speaking of rigorous and clever, etc.
在解决、论证数学命题过程中，准确使用逻辑思维方法，可使具体解题步骤严谨周密，条理清晰，形成完整的推理体。
On the process of solving and proving mathematical proposition, using logical thought ability exactly will make steps strict and ordered.
一个人的能力与心灵不可能不同调，如果他的心灵有条理、认真且严谨，他的能力也一定不错且明智。
A man's ability cannot possibly be of one sort and his soul of another. If his soul be well-ordered, serious and restrained, his ability also is sound and sober.
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