The systemic observation in the field for many years showed that temperature was the main factor affecting the dynamics of citrus canker in the stage of spring sprouting.

多年田间系统观察表明，柑橘溃疡病的消长，在春梢期，主要影响因子为气温。

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Patients in the observation group received preventive education at the base of physiotherapy according to the stage of inflammation.

观察组在物理疗法的基础上进行预防宣教。物理治疗方法根据发炎的不同阶段确定。

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Objective To research the pathological changes of cerebral concussion through the observation of the relationship between clinical manifestation and BAEP changes of these patients at coma stage.

目的观察脑震荡昏迷期患者的临床体征、症状和脑干听觉诱发电位变化的关系，研究脑震荡可能的病理生理基础。

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As you progress through the initial months of observation required in an apprenticeship, you will enter a critical stage: practice toward the acquisition of skills.

FORBES: Why Apprenticeships Are the Fastest Way to Acquire Skills