“革命是历史的火车头”，17至18世纪，欧洲各国纷纷爆发革命，仔细阅读材料回答问题：

材料一：国王未经议会同意，不得颁布或废止法律，不得征收和支配税收，不得在和平时期征集和维持常备军；不得对臣民滥施残酷的刑罚。

材料二：人生来是自由的，在权利上是平等的，自由是指有权从事一切无害于他人的行为……私有财产神圣不可侵犯。-------《人权宣言》

材料三：他说：“我真正的光荣并非打了40次胜仗，滑铁卢之战抹去了关于一切的记忆，但是，有一样东西是不会被人忘却的，它将永垂不朽。”

若$\sqrt{a-1}+\left|b+2\right|=0$，点M(a，b)在反比例函数$y=\frac{k}{x}$的图象上，则反比例函数的解析式为（   ）

---Now more and more Chinese senior students are applying for admission to American universities through SAT.
---        . But taking an SAT may cost one more than 10,000 yuan.

根据短文理解，选择正确答案。

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下列关于电荷和电荷量的说法中正确的是：