问题 单项选择题

下列哪一种情况下氧解离曲线发生右移?()

A.肺通气阻力减小

B.代谢性碱中毒

C.2,3-二磷酸甘油酸增多

D.血温降低

E.血CO2分压下降

答案

参考答案:C

材料分析题

中学生小冬开始沉迷于网络游戏,影响了学习。后在老师和家长的帮助下,他摆脱游戏的诱惑,利用电脑方面的优势,成为电脑网页制作的校园小明星。

(1)这个案例说明了什么?对你有什么启发?

                                                                                                                                                               

(2)谈谈网络的利与弊。

                                                                                                                                                               

                                                                                                                                                               

                                                                                                                                                               

                                                                                                                                                               

判断题