ln√x1导数

4+4等于几? nation和country的区别? country和nation的区别是什么? nation和country具体有什么区别 诶及是世界四大文明古国之一,发明了 文字 历法等古代文化 小学三年级数学教学教具制作些什么好,哪位大师告诉我? 用4个或造句 用4个哪里造句 造句.选4个融化 分辨 舒展 抱怨 器皿 打喷嚏 潜意识 喜怒哀乐 嘈杂无聊 疾驰而过 鸟叫虫鸣 充耳不闻 无动于衷 视而不见 不折不扣 已知直线l1：根号3x-y=0,l2:x-根号3y+2=0,求两直线l1与l2夹角 已知直线l1:x=-7和直线l2:3x-根号3y+4=0,则l1与l2的夹角是? 直线L1:根号3x+y-3=0与直线l2:x-根号3y+1=0的角平分线方程为 the students-----(have)a class 英语翻译Students who have class conflicts which result in a missed meal,have the option of pre-ordering a boxed meal.Students must complete the form and provide it to the cashier 24 hours in advance,or complete a form at the cashier stand 24 hour 上课捣乱课堂纪律的检查我是纪律委员 We enjoyde ____(play)basketball on the playground yesterday afteroon用括号中的单词的适当形式填空 改错Yesterday,they play basketball on the playground. 学习态度不端正的检讨书150字 Now Helen's family __(be) at home and __(watch) TV.为什么用watching? Last Saturday,I _ Helen's family.It was my first __ her family.A.visited,visit B.visited ,visit to Helen went on an outing with her mother last Sunday.(改为否定句) 军训日记800字 急 军训日记800字 The students___that they must not talk loudly in class A.are told B.have told Don't talk loudly at the meeting .If you __ ,you have to go out.A.do Bdid C.can D.are 为什么选A You are not s＿＿to talk loudly here.The child is sleeping. Don't talk loudly here,( A.don't you B.aren't you C.will you the students are talk a什么the cartoonb什么class. （）+（）=12分之11(分母小于12） Are you going to fix the car yourself, or are you going to have it _______?A fixing B to fix C fix D fixed为什么是D,求高手解释下 Are you going to the zoo?A.i'm goning to the zoo.B.yes,I am C.Yes,we are D.No,I'll go to the park 已知一次函数y=kx+1和反比例函数y=k/x的图像都经过点（2,m).1）求一次函数解析式.2）求这两个函数图像的另一个交点坐标.