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共找到 665 与BE=5 相关的结果，耗时19 ms
关于向量的三道题1 已知向量集合M=｛a│a=(1,2)+λ(3,4),λ∈R｝,N=｛a│a=(-2,-2)+λ(4,5),λ∈R｝,求M∩N2 已知：AD、BE、CF是△ABC的三条高,交于O点,DG⊥BE于G,DH⊥CF于H,求证：HG‖EF3 两个力F1=i+
数学
,F2=4i-5j作用于同一
根据首字母和括号里提示填空.1.Her parents ____(take) her to English last year.2.You should_____(see) a doctor if you have a cold.3.Don"t_____(eat) t
英语
o much junk fo
1.I can't f__ that work in such a hurry time .首字母填空.2.Be p___.Don't laugh at others.3.He wants a cheap watch ,But all the watches are
英语
oo d____.4.We
给所给的词的适当形式填空!1.My brother _____ in the park .(be)2.Miss Liu is a student .______name is Liu Lan(she)3.This is my cat._______name is Ki
英语
ty.(it)4.May I
In the past,many people (1) _________ (like) (2) _________ (travel) by bus.All passengers (3) ____(have to) (4) _________ (buy) ticket
英语
.There (5) ___
抄写：areyouadriver.一.用所给单词适当形式填空1.Youcancall(he)John.2.Bring(she)abottleoforangejuice.She'sthirsty.3.Comeinto(I)office.4.What(be)you?I(b
英语
e.4.What__(be)
英语翻译1.his mother is worried () his lessons.2.there was somthing wrong ()the radio.3.John lives on the 15th floor and uses a lift to go
英语
()and ().4.i t
英语翻译（1）dream about（2）it is difficult to do sth（3）too..to（4）be confident（5）decide to do sth（6）be full of （7）live a normal life（8）thank
英语
b for doing（9）
1.Is it the twins' turn_(answer)the question?2.please tell me what you would like me_(do)3.The class_(listen)to the teacher carefully.
英语
.The little bo
用间接引语改写下列句子1"Be patient,"she said to him.2"Go to your room,"her father said to her.3"Hurry up,"she said to us.4 "Give me the key,“he t
英语
ld her.5"Play
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