Cho ∆ABC và P,Q thỏa mãn: $\vec{PA}$+5$\vec{PC}$=$\vec{0}$ Và $\vec{QA}$+3$\vec{QB}$+5$\vec{QC}$=$ \vec{0} $ CM: P,Q,B thẳng hàng

fffffffffffffffffffffffffffffffffffffff

CHỌN ĐÁP ĐÚNG : lquan đến đại từ quan hệ và rút gọn đtqh ậ ... GẤP LẮM Ạ CHỈ CS MẤY CÂU THÔI DO SỐ THỨ TỰ LUNG TUNG NÊN NHÌN DÀI Ạ gấp lắm aanh chị ơi... 35.My uncle………………you met yesterday is an engineer a.which b.what c.whom d.whose 37.When we came to visit her last night, she………………TV a.is watching b.was watching c.has watched d.watched 38.You were not absent in class, ………………? a.were you b.weren’t you c.was it d.wasn’t it 48.Do you know the man………………over there? a.stands b.who stand c.stood d.standing 49.I hope the children soon got used………………in much smaller house a.live b.to live c.living d.to living 50.Help is needed for families………………homes were destroyed in the storm a.who’s b.whose c.which d.whom 56.Neil Armstrong,…………….first walked on the moon, lived in the USA a.who b.that c.whom d.whose 57.Baird produced the first tv picture in 1926,…………….? a.didn’t he b.wasn’t he c.doesn’t he d.hasn’t he 60.She asked me if I………….any other language a.speak b.spoke c.can speak d.would speak 61.Internet bar mustn’t let anybody……………bad things a.watch b.towatch c.watching d.watches 62.It’s a pity you live so far away. I wish you…………….. a.lived nearer b.live near c.lived near d.live nearer 65.She got up when the alarm went………………. a.in b.up c.over d.off 66.The children were so…………by the film on Tv that they didn’t to go to bed early a.interested b.bored c.attrated d.attached 91.My pen friend,……….photos I showed you, will come to see me next week a.her b.which c.who d.whose 121.He wants to visit the place………President Ho Chi Minh left Viet nam in 1911 a.that b.which c.where d.what 125. 1. I wish Susan ..................... harder for her examination. A. will work B. worked C. has worked D. works 131. I like the composition ................. you wrote. A. whose B. whom C. which D. who 132. I’m not tired ................... working all day. A. although B. in spite of C. though D. despite of 133. I suggest ................... to the movies. A. going B. go C. to go D. went 138. What ................... you do if you won a lottery ticket ? A. will B. would C. did D. do 141. She doesn’t know the person ...................... sent her this letter. A. who B. whom C. whose D. which 142. She suggests ...................... money for the poor in her town. A. to save B. save C. saved D. saving 143. He stopped ................... a year ago A. to smoke B. smoking C. smoke D. smoked 144. She has to look ......................... her brother because her mother is away on business. A. up B. after C. for D. into 145. The man and animals ____________ you saw on the TV were from China. A. who B. whom C. which D. that 146. Mount Pinatubo, _________ is a volcano in the Philippines, erupted in 1991. A. which B. who C. whom D. whose 147. Tornadoes or funnel shaped storms can suck up anything _______ is in their path. A. who B. whom C. that D. whose 148. Kangaroos, which come ___________ Australia, have long tails. A. to B. in B. from D. for

rewrite the following sentences with Gerund

Cho tam giác ABC cân tại A đường cao AE . Trên AB lấy I sao cho AI = AB/3 ; Trên AC lấy J sao cho AJ / AB =1/3. a) Chứng minh B đối xứng C qua AE b) Chứng minh I đối xứng J qua AE ( giúp em với)

Giúp tớ giải bài tập này nhanh nhé

Help meeeeeeeeee !!!!!!!!!!!!!!!!!!!!

nếu ko giữ tư thế đi ,đứng ,ngồi đúng thì sức khẻ cá nhân sẽ bị ảnh hưởng như thế nào ,đặc biệt ở độ tuổi của em? em đang cần gấp ạ

Câu 3: Đốt cháy hoàn toàn 20,5 gam hỗn hợp gồm hai ancol no, đơn chức, mạch hở kế tiếp nhau trong cùng dãy đồng đẳng, sau phản ứng thu được 21,28 lít CO2 (đktc). a. Xác định công thức phân tử của hai ancol. b. Tính khối lượng mỗi ancol trong hỗn hợp

lớp electron nào có số electron tối đa là 10? Trả lời và giải thich