When I was 8 years old, I went to the USA with my parents. I can still 1 the first Halloween holiday I had in the USA.
On the morning of Halloween, we paid a visit to a pumpkin farm. Each of us brought a pumpkin to school with us. I used the pumpkin to make a2which had two triangle eyes and a scary mouth.
In the afternoon, we 3the Halloween costumes (服装) and went on parade in school. Some of the costumes were nice, but some of them looked 4. I chose to wear a suit of Superman's clothes.
I did a lot of things that day, but the part I liked best was "Trick or Treat" in the evening. After diner, I went outside with a (n) 5 bag. I hoped to get a lot of 6from people. At first. I was a bit 7. So when I knocked at the door, my heart was beating very fast. A lady came out, and I said carefully to her, "Trick or Treat" I said in a 8 voice, and even myself could hardly hear it. To my surprise, the lady was so kind to give me two candy bars, and I was so excited, thanked the lady and moved on. I couldn't remember how many 9I visited, but I could remember how many candies I got--9l pieces of candy that day, and I was so happy. What a wonderful Halloween I had! And I10we could have a Halloween every month!
邹忌讽齐王纳谏
邹忌修八尺有余,而形貌昳丽。朝服衣冠,窥镜,谓其妻曰:“我孰与城北徐公美?”其妻曰:“君美甚,徐公何能及君也?”城北徐公,齐国之美丽者也。忌不自信,而复问其妾曰:“吾孰与徐公美?”妾曰:“徐公何能及君也?”旦日,客从外来,与坐谈,问之,客曰:“吾与徐公孰美?”客曰:“徐公不若君之美也。”明日,徐公来,孰视之,自以为不如;窥镜而自视,又弗如远甚。暮寝而思之,曰:“吾妻之美我者,私我也;妾之美我者,畏我也;客之美我者,欲有求于我也。”
于是入朝见威王,曰:“臣诚知不如徐公美。臣之妻私臣,臣之妾畏臣,臣之客欲有求于臣,皆以美于徐公。今齐地方千里,百二十城,宫妇左右莫不私王,朝廷之臣莫不畏王,四境之内莫不有求于王:由此观之,王之蔽甚矣。”
王曰:“善。”乃下令:“群臣吏民能面刺寡人之过者,受上赏;上书谏寡人者,受中赏;能谤讥于市朝,闻寡人之耳者,受下赏。”令初下,群臣进谏,门庭若市;数月之后,时时而间进;期年之后,虽欲言,无可进者。燕、赵、韩、魏闻之,皆朝于齐。此所谓战胜于朝廷。
①吾妻之美我者,私我也;妾之美我者,畏我也;客之美我者,欲有求于我也。
②能谤讥于市朝,闻寡人之耳者,受下赏。
①人的男性和女性 ②狗的长毛和卷毛 ③人能卷舌和不能卷舌
④豌豆的高茎与矮茎 ⑤人的双眼皮与色盲 ⑥人的头发左旋与惯用右手
,其斜率为k,直线l与圆
相交,交点分别为A,B.
,求k的值;
,求k的取值范围;
为坐标原点
,求k的值.

xC(g)+2D(s),2min时反应达到平衡状态,此时剩余1.2mol B,并测得C的浓度为1.2mol/L.