第8题: [单项选择]果园中的果树与杂草、食虫鸟与害虫之间的关系分别是() A. 共生、捕食 B. 竞争、寄生 C. 竞争、捕食 D. 捕食、竞争 参考答案:C 答案解析:果树与杂草因为都是生产者处于同一营养级是竞争关系,食虫鸟与害虫是捕食关系,故选C。
考点:本题考查种间关系相关知识,意在考察考生对知识点的识记理解掌握程度。
A. He drives too fast. B. He plays his guitar too loudly. C. His radio wakes her children up. D. His friends are too noisy. 参考答案:C 答案解析:[听力原文]4-7 W: How are your new neighbors, Nancy M: They seem nice enough, but they have a son
第13题: [单项选择]男,20岁。1周来发热、食欲减退、厌油、恶心呕吐、尿黄,黄疸急剧上升至血清总胆红素170μmol/L,凝血酶原活动度35%,近2天出现嗜睡,烦躁不安伴牙龈出血,皮下瘀斑。肝肋下未扪及,该患者的诊断首先应想到() A. 急性肝炎 B. 中毒性肝炎 C. 急性重型肝炎 D. 淤胆型肝炎 E. 慢性肝炎 参考答案:C 答案解析:急性重型肝炎又称暴发型肝炎,发病多有诱因。以急性黄疸型肝炎起病,但病情发展迅猛,2周内出现极度乏力,严重消化道症状,出现神经、精神症状,表现为嗜睡、性格改变、烦躁不安、昏迷等,体检可见扑翼样震颤及病理
第31题: [单项选择]Renal filtration barrier consists of all of the following components EXCEPT
A. The fenestrated endothelium of the glomerular capillaries B. The basal lamina C. The filtration slits with diaphragms between pedicels D. Medullary rays E. Renal capsule 参考答案:D