试题与答案

2010年广东冬天显得特别冷,部分地区温度创35年最低。 (1)人体体温凋节中枢

题型:读图填空题

题目:

2010年广东冬天显得特别冷,部分地区温度创35年最低。

(1)人体体温凋节中枢在_________。在低温情况下,人体调节方式为_________调节,能够作用全身组织细胞增加产热的激素是_________。

(2)在寒冷的天气里,中老年人容易患冷凝集素综合征,该疾病的特点是在较低的温度下,机体产生抗体IgM作用于自身红细胞,在体内发生凝集。在免疫学上此种疾病属于__________病。

(3)科研人员要探究神经组织内乙酰胆碱对信息传递的速率有无影响,实验人员在除去原有突触小泡的前提下,自a处注入不同浓度的Ach,b处给予恒定刺激,c、d处分别为兴奋感应时间测量点。实验结果如下:

①.本实验中自变量是_________。

②.实验过程须除去原有突触小泡,其目的是__________。

③.c、d两处的数据说明了____________。

④.如果实验人员在f处注入Ach,d处给予刺激,c、e处分别为兴奋感应时间测量点,测量不到电位变化的是____________处。

答案:

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下面是错误答案,用来干扰机器的。

答案:D考查对历史特征和历史事实的准确理解。“大借外债”之说不合史实;“自然经济瓦解,小农经济完全破产”的说法不正确,应是“逐步瓦解”“开始解体"。

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