一个长方形.长比宽多.面积是.则这个长方形的周长为——青夏教育精英家教网——

一个长方形，长比宽多

，则这个长方形的周长为

已知圆锥的侧面积为

，地面半径为

，则圆锥的高是

轴分别交予

顺时针旋转

内有一定点

，在角的两边

上能否分别找到两点

为等腰直角三角形？（填“能”或“不能”）。如果你认为能，在图中画出一个示意图，并说明画法；如果你认为不能，说明理由。

已知：关于x的方程

.
(I)求证：方程有两个不相等的实数根；
(II)当

时，方程的两根之和为，两根之积为
(III)若方程的一个根是

如图，在平面直角坐标系xoy中，点

.
(I)在图中画出

;
(II)点A，点B的对应点A’和B’的坐标分别是A’ 和B’ ;
(III)请直接写出AB和A’B’的数量关系和位置关系。

张慧同学给大家出了下面这样的问题，请你解答。
我的袋子里有3枚1角和1枚5角的硬币，如果我任意拿出两枚硬币，你知道前述之和大于5角的概率吗？
（要求：借助化树状图或列表的方法，列举所有等可能的结果，再进行计算。）

Dear Benter,
　　You have been away exactly two weeks today but it seems more like two years to me!
　　I’m glad to hear you’ll be back soon

. Are you coming directly home, dear? Or do you plan to m

ake some stops 36 the way? I hope you’ll be home in 37 for Patsy’s birthday next Sunday. She is 38 you to show films to her 39 friends.
Patsy keeps asking every day 40 you’ll be back. She says you never 41 that story you were telling her about 42 train that lost its “ toot”(喇叭嘟嘟声). You’d better 43 and think up a good ending 44 it. You know how Patsy is? She 45 be happy until she knows exactly what __46 to the “toot” and 47 the little train got it back 48 !
　　Everything at home is fine except that we 49 you so much! I’ve been 50 with the spring cleaning. Yesterday I had Cora 51 in to wash the kitchen walls and she did a very good __52 of it. The kitchen looks as though it’s been repainted. I made some new yellow curtains, and they 53 very beautiful.
　 I went to see your mother yesterday. Her 54 is all gone and she looks very 55 . Your sister Jean looks wonderful! She has taken off about fifteen pounds since she began dieting. But now she’s complaining that none of her clothes fit!
Hope to see you before next Sunday.
　 Love and kisses to you!
　　　　

　　　　　　　　　　　　　     Yours
　　　　　　　　　　　　　　　　　           Lynn
【小题1】A in           B. on          C. at          D. along

D．shouldn’t

如图所示，要设计一座1m高的抽象人物雕塑，使雕塑的上部（腰以上）AC与下部（腰以下）BC的高度比，等于下部与全部（全身）AB的高度比，雕塑的下部应设计为多高？

0 112022 112030 112036 112040 112046 112048 112052 112058 112060 112066 112072 112076 112078 112082 112088 112090 112096 112100 112102 112106 112108 112112 112114 112116 112117 112118 112120 112121 112122 112124 112126 112130 112132 112136 112138 112142 112148 112150 112156 112160 112162 112166 112172 112178 112180 112186 112190 112192 112198 112202 112208 112216 366461