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金红苹果主要病害有:腐烂病、黄化病。一、腐烂病病状:该病主要为害树干皮层,结果树和幼树均染病受害。多发生在干枝的向阳面和大枝叉上,侧枝受害较轻。初期病疤为红褐色,呈水渍状,并带有酒糟味。后期表皮露出病菌黑色点粒。 相似文献
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破伤风的诊断,可从症状上去观察,据我临床经验可从发展过程及病的轻重程度分为三期。一、初期。受病较浅,仅有一些疑似病状。如浑身发痒、擦树、擦格、眼神较惊,食草较慢、四肢运动稍有不便等。若不细心就不容易看出破伤风症状。如将家畜闪骨遮盖眼球一部分,此时脉呈洪大、口热舌赤,这是诊断破伤风的主要根据。2、中期。病畜呈现惊惶、四肢僵硬,耳紧竖、尾直伸、眼急而不活转,鼻孔张大、伸头直颈、牙关开始咬紧,稍有涎沫吃草吞啃唇紧缩。三、后期。浑身肉战,角弓反张,不时惊吓汗出如油、气喘并有痰响、站立不住依绳倒坐、牙关完… 相似文献
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Jim Bryant 《系统科学与系统工程学报(英文版)》2009,18(4):423-436
The world post-9/11 is characterised by uncertainty, fear and suspicion. Psychological confrontations amplified by the mass
media have even come to dominate physical engagements between warring parties. Drama theory provides a powerful framework
for understanding these interactions in much the way that game theory was able to support strategy making by autonomous players
in a less inter-connected era. A model of the ‘normal’ process leading to dramatic resolution is an essential feature of the
drama theory approach and is described here. However this process can be derailed or fail in many ways. This paper reviews
many of these systemic pathologies and illustrates some of them through consideration of three high-profile cases. The conclusion
is that it is important to recognise and possibly to use pathological behavior as an element of a character’s interaction
strategy. 相似文献
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