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问题 单项选择题

CoQ的特点是

A．它仅仅是电子递体
B．它是复合体Ⅰ和Ⅱ的组成成分
C．它能在线粒体内膜中迅速扩散
D．它是水溶性很强的物质

答案

参考答案：C

解析：CoQ的特点是它能在线粒体内膜中迅速扩散。

改错题

单句改错。

请将错误在原文中标出,并将正确答案写在横线上。

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请你仔细阅读下列珍贵的历史图片，并回答相应的问题。

（1）图A所示场景发生在哪一年？西藏和平解放产生了怎样的意义？

                                                                                                                                                            

（2）写出图B反映的历史事件发生的起止时间，在这一运动中中 * * 党颁布的纲领性文件是什么？

                                                                                                                                                             

（3）中国人民志愿军何时开始跨过鸭绿江入朝作战？写出在这一战争中牺牲的两位著名战斗英雄的名

    字。他们集中表现出了中国人民志愿军怎样的精神？

                                                                                                                                                              

（4）以上三幅图片反映的重大历史事件起到了怎样的共同作用？

                                                                                                                                                             

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