大学提前招生

what are the characters of American people? the problem lies in isolating precisely what motivates people to have in particular way what are the characters of American people? 英文回答 为保证起重机起吊重物时不会向前翻到,在其右端需配置一个4.0×10的4次方N的平衡重物M.1.若不考虑起重机自身重力,该起重机可吊起最大物重为多少?2.该起重总重为1.2×10的5次方N（包含M）,能 我有一张特殊的人民币100元,它有两个相同的编号,都在正面,分别在左下角和右旁侧,1999年的,请问它有没有收藏价值,是怎么回事? 05版人民币100面值正面左下角那些圈圈是什么意思?还有正面右下角有个点和两个折号是什么意思? The Vikings are generally considered__the first Europeans to reach America.A to be B.to have been C.being D.having been为什么? Pumpkins are believed to have originated in North America,______ seeds from related plants have been found dating back to 7000 B.C.A.as B.which C.where D.whose我觉得D也说得通啊,他去修饰pumpkins,表示前面pumpkins的物主代词为什么 The Viking are believed _______America.A.to have discovered B.to discoverC.in discovering D.to have been discovered应该选择哪一个啊?为什么? 求,I am America.I am Ali.I have always believed in myself.开头的完形填空题I am from America.I am Ali.开头的英语完形填空题 用微粒的观点解释、相同质量的液态水和气态水所占体积不同 图中11题. 如图,点A对是反比例函数y=k/x(x>0)上的点,OA=根号5,点B的坐标为（3,0）,AB与x轴的锐角为45度,求k的值点A对是反比例函数y=k/x(x>0)上的点,OA=根号5,点B的坐标为（3,0）,AB与x轴的锐角为45度,求k的值. 如图,已知点A的坐标为（根号3,3）AB⊥x轴,垂足为B,连接OA,反比例函数y=x／k（k＞0）的图像与线段OA,OB分别交于点C,D.若AB=3BD,以点C为圆心,CA长为半径作圆,则该圆与x轴的位置关系是 （填“相离” 若直线y=kx与曲线y=1/3x^3+4/3相切,求实数k的值 have you ever ___ America yet?A.Have…been to B.Have…gone to C.Have…been in D.Have…gone in have you ever been to hongkong 还是gone? have you ever gone to和have you ever been to的区别? have ever been to 和have gone to有什么区别 Have you ever been in America?和Have you ever been to America?什么区别 一个做匀速直线运动的物体7s里通过的距离是21m,那么它前3s的运动速度是多少,相当于多少km/h? 某恒星距离太阳约4年相当于多少KM 谁能出关于五年级的找规律和解决问题的策略的奥数题并附上答案? 1.合唱队有男生35人,女生42人.参加训练时要把他们分别分为人数相等的小组,每组最多有几人?这时男生和女生分别有几组?2.有一个长方体,长70厘米,宽50厘米,高45厘米.如果要把它切成同样大小 《我的伯父鲁迅先生》中的重点句子和理解 have nothing to do but do如何翻译 have nothing to dohave nothing to do=_____________________ i have nothing to do today.改为同义句the boy has to buy himself a ticket改为一般疑问句 I have nothing to do today.(同义句） 若直线y=kx与曲线y=x^3-3x^2+2x相切,试求k的值 若直线y=kx 与曲线y=x^3-3x^2+2x相切,求k的值 若直线y=kx与曲线y=x³-3x²+2x相切,试求k值