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①反映了古埃及社会经济发展的较高水平
②是古埃及人民智慧和血汗的结晶
③反映了古埃及国王的无限权力
④是新王国时代埃及国力强盛的标志之
如图,在平面直角坐标系中,每个小正方形的边长为1cm,△ABC各顶点都在格点上,点A,C的坐标分别为(﹣1,2)、(0,-1),结合所给的平面直角坐标系解答下列问题:
(1)AC的长等于多少?
(2)画出△ABC向右平移2个单位得到的△
,求A点的对应点A1的坐标。
(3)将△ABC绕点C按逆时针方向旋转90°,画出旋转后的△
,求A点对应点A2的坐标。
古人造字,源起象形,依样画葫,栩栩如生。请将下列古体字的序号对应填入简体字的括号中。
①
②
③
④
茧 鸟 乳 水
如图,一位同学想利用树影测量树高(AB),他在某一时刻测得高为1m的竹竿影长为0.9m,但当他马上测量树影时,因树靠近一幢建筑物,影子不全落在地面上,有一部分影子在墙上(CD),他先测得留在墙上的影高(CD)为1.2m,又测得地面部分的影长(BC)为2.7m,他测得的树高应为多少米?

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In 1990, when I (be) nine years old, I wanted very much to find pen friend. I found Ashley's address in a magazine, and decided (write) to her. I sent off my letter with a little hope. Very quickly, I received her letter. my surprise, Ashley was only one month (old) than me. I learned some new expressions from her. I (real) liked this new friend.
Letter after letter, year after year, Ashley and I continued to write to one another. A letter would be received and I'd write back right away. We would send each other birthday and festival (gift).
Eight years later, my parents decided it was time me to meet this friend. They drove me down to Mississippi for a few days. We (have)a fun time together. We did the things that teenage girls love to do.
Twenty—five years after the (one) letter, Ashley and I still have an amazing friendship. Although we don't write letters now, we communicate through mobile phones and the Internet.
he milk every evening?