题目

人体稳态的调节能力是有一定限度的.下列现象属于内环境稳态失调的是()       A.  寒冷时骨骼肌不自主颤栗       B.  胰岛B细胞受损出现尿糖       C.  接受抗原刺激后,B淋巴细胞增殖和分化       D.  剧烈运动后,人体血液pH由7.42下降到7.38 答案:B根据句意, 用括号中所给词的适当形式填空。 1.Will people live                 100 years old?   ( be ) 2.Mother               (sweep) the floor when I             (leave) home. 3.My friend Eve told me she                (be) going to buy a new computer. 4.It’s necessary for young people                    (experience) different things. 5.My dream is to be a                   (profession) athlete.
生物 试题推荐