问题 解答题
(1)|2
3
-4|+
3-64
+(2-
3
)×
3

(2)求x的值:49x2=(-4)2
答案

(1)原式=4-2

3
-4+2
3
-3=-3;

(2)原方程可化为49x2=16,

两边同时除以49得,x2=

16
49

解得,x=±

4
7

材料题

阅读下列材料:

       材料一:未经议会同意,国王无权废除法律或停止法律的执行;不经议会同意,国王不能征税;不经议会同意,国王不能在和平时期维持常备 军;议会必须定期召开,议员的选举不受国王的干涉。

       材料二:我们以这些殖民地的善良人民的名义和权利,谨庄严宣告:这些联合殖民地从此成为、而且名正言顺地应当成为自由独立的合众国。他们解除对英王的一切隶属关系。而且它们与大不列颠王国之间的一切政治联系也应从此完全废止。

       材料三:人们生来是自由的,在权利上是平等的;自由、平等、安全及反抗压迫是天赋的权利;在法律面前人人平等;私有财产是神圣不可侵犯的。

请回答:

(1)以上三则材料分别出自何国的什么文献?这三则文献分别在何时颁布?

                                                                                                                                                               

                                                                                                                                                              

(2)材料一和材料二的颁布分别有何影响?

                                                                                                                                                              

                                                                                                                                                              

 (3)材料三反映了该文献的实质是什么?

                                                                                                                                                              

                                                                                                                                                             

问答题 简答题