生物学七年级下册

4圆周角(1) the shoes (behind the door )are millie's （对括号部分提问） ____ ____are millie's. 《对手》作文450字左右 请大家帮忙改几个英语间接引语的句子吧!1 He said,“I know who did it."2 He said,"Before she came back I had fallen asleep."3 He told me,'I knew she had been wrong.'4 He said,'I did not know she would come.'5 He said,'If it should not 六年级作文以对手为题450字急急急!马上! 英语翻译Where is the father?Two brothers were looking at some beautiful paintings."Look," said the elder brother."How nice these paintings are!" "Yes," said the younger,"but in all these paintings there is only the mother and the children.Where i 英语翻译她告诉我她不懂英语.他们告诉我他们支付不起.她们告诉我她们付得起.他说他可能去电影院.她说她可能会打电话给他. 已知C1:y=2x-5,C2:x2+y2=k(k>0).当时,两曲线有两个交点；当时,两曲线有一个交点；当 时,两曲线没有交点填k的取值范围 英语翻译题目（间接引语的使用）He said________________他还没有收到他女朋友的来信 The teacher told us that______________地球围着太阳转 She want to konw______________为什么他上学又迟到了The teacher told me __ 设y+z分之x=x+z分之y=x+y分之z=k,求k的的值 已知命题“a>c,b>c,则a＋b>2c”,试写出该命题的逆命题,否命题与逆否命题,并判断它们的真假. 已知命题若a＞c,b＞c,着a+b>2c,写出命题的逆命题,否命题,逆否命题,判断它们真假 写出 命题a>b,则a≠b 的逆命题,并判断其真假 这道题该怎么选, you should __your voice ,someone is studying. A.turn down.B keep down.最重要的是turn down与 keep down.在这道题有什么区别,也就是他们各自应该用在什么情况下,我想选B,但答案给的却是A, keep down造句 internet Internet 曲线X的平方+Y的平方-4XY+3=0与直线Y=1的交点个数为多少个? The keys are on the desk(改为否定句) The keys( )( ) on the desk. 曲线Y根号1-X平方与曲线Y+aX0(a∈R) 的交点个数为?(11点之前回答有效!) bent 过点P(2,3)的斜率为k的直线l1交y轴正半轴于点M,过点P垂直于l1的直线l2交x轴正半轴于点n1）求点M、N的坐标（用k表示）2）求线段MN长度c的取值范围3）求四边形OMPN面积S的取值范围 已知直线l过点P(-1,3),且与x轴y轴正半轴分别交于A,B两点,当|PA|*|PB|,取得最小值时,直线l的斜率是 沉默!不在沉默中爆发,就在沉默中灭亡.用的是什么修辞手法? 什么是物体维持运动的原因既然力不是,那什么才是呢 翻译你住的什么样的房子?／你的家是什么样的? be of great help to用法be of great help to后面除了加sth,可不可以加动词,如果可以该怎么用呢 沉默呵,沉默呵!不在沉默中爆发就在沉默中灭亡的仿照句 沉默呵,沉默呵!不在沉默中爆发,就在沉默中灭亡苟活者在淡红的血色中，会依稀看见微茫的希望；真的猛士，将更奋然前行。仿照的句子 各路大哥 小弟的积分用完了 麻烦各路高手免积分解答哈`` 过点M（2.1）的直线L,分别交X轴,Y轴的正半轴于A,B求分别满足下列直线L的方程：（1）使△AOB面积最小（2）使得｜MA｜·｜MB｜的值最 x3（立方）+3x2（平方）-3x+k有个因式是x+1,则k=? k是整数,x3+x2+x2+x2-3x+k有一个因式是x+1,则k＝（ ）另一个因式是（ ）12:25之前答对有奖.