请你务必要来用英语怎么说?

you make sure to write down every words what she told you

1:we haven't received the following items yet, make sure to delivery the goods on time as the original delivery date ,or it would effect the time of making samples.
2:pls close attention to the r/d of the folowing item,pls arrange the delivery to India when you receive!very urgent!

万重山峦挡不住,
只因蓝天在身边.

m是方程x²-x-1=0的根
得 m²-m-1=0
即m²-m=1
∴2m²-2m=2(m²-m)=2
选 D

（1）第一个答案为0,
思路：每两个结合下,分别是-1,1.而我们知道每四项相加为0,正好2000是4的整数,故为0.
（2）第二个答案为1650,
思路：和第一个一样,只不过是每三个相加后得：2、5、8、11、、、、98.总共有33项,即n=33,a1=2,an=98,d=3.
再根据前n项和公式为：Sn=na1+n(n-1)d/2或Sn=(a1+an)n/2 可得最后结果为1650!

成长的烦恼与快乐
在我的成长过程中,有许多烦恼,比如,有许多很难的习题让我做,家长安排了许多补习课程,没有玩的时间,很苦恼;但是也有很多快乐,比如,有许多美好的事物让我们欣赏,和同学们在一起,过节日或给同学过生日,都很快乐.所以成长中有烦恼与快乐,不可能是一帆风顺的,我们要勇敢的面对,就一定回有快乐.
The trouble and happiness of growth
In my growth process,there are many troubles,for example,having many very difficult exerciseses to let me do,the parent arranged many refresher courses,time that did not play,very distress; but also have a lot of happinesses,for example,have many fine things to let us enjoy,are together with the classmates,observe a festival the day or lead birthday for classmate,all very happy.So have the agony and happiness in the growth,is impossibly Bon voyage,we want the braveness of face,certainly return to happiness.

1.B
物体原来能悬浮在水中,说明物体的密度等于水的密度.
把物体切开后,密度仍等于水的密度,所以仍将漂浮
2.B
物体受到的浮力大小只与它们排开水的体积有关,三者受到的浮力相等,则它们排开水的体积相等,则三者的体积相等
3.三力相等
因为三者的密度都小于水银的密度,在水银中都处于漂浮状态,而三者的重力相等,所以三者受到的浮力也相等
4.C
冰漂浮在水面时,它排开的水的重力等于它的重力
冰化为水后,质量不变,重力也不变,所以冰化成的水正好填补了原来它排开水的部分,所以水面的高度不变
5.C
铁的密度大于水与酒精的密度,所以在它二者中会沉底,浮力小于重力
而铁的密度小于水银的密度,所以它在水银中处于漂浮状态,所以浮力等于重力,所以它在水银中的浮力最大
6.对
物体受到的浮力的大小只与它排开液体的重力有关,与物体的形状是无关的
7.5N,5N,前,5N
8.当物体的状态稳定,即物体排开的液体的体积一定时,可以用公式计算
当物体的浮力比重力大或比重力小时,有由状态来判断

1:we haven't received the following items yet, make sure to delivery the goods on time as the original delivery date ,or it would effect the time of making samples.
2:pls close attention to the r/d of the folowing item,pls arrange the delivery to India when you receive!very urgent!

When decorating the room, you must make the carpet go with the curtain.

f（x) = (x+3)/(x+4)
f(x) = f(-x)
(x+3)/(x+4) = (-x+3)/(-x+4)
(x+3)(-x+4) = (-x+3)(x+4)
-x^2+x+12 = -x^2-x+12
2x = 0
x = 0
所有x的和为 = 0