1+(5-3)+(9-7)+...+(2005-2003)=?

Phân loại và gọi tên các hợp chất sau Zn(HSO4)2................. CaHPO4 Al2(HPO4)3 Ca(H2PO4)2 GIÚP EM VỚI MỌI NGỪI ƠI CẦN GẤP

giúp mình nhé 260. _______ is your sister in? Grade eight. A. What class B. Where C. Which D. Which grade 261. - What _____ every morning? - I get up, wash my face, brush my teeth and go to school. A. are you B. do you do C. does you do D. is you do 262. My school ______ four floors. A. has B. have C. is D. are 263. He ______ his teeth after breakfast. A. brush B. brushs C. brushes D. to brush 264. Where is his classroom? It’s on the ______ floor. A. two B. first C. one D. three 265. My school is not big. It’s ________. A. big B. small C. not small D. new 266. How many floors _______ it have? A. does B. is C. do D. are 267. What _______ you do every morning? A. are B. do C. is D. does 268. ________ class era you in? A. Who B. Which C. Where D. How 269. Lan ______ her teeth every morning. A. do B. does C. brush D. brushes 270. How many classrooms does it ______? A. do B. is C. does D. have 271. He _______ a big breakfast at 6.30. A. eat B. has C. have D. get 272. In the afternoon, I _______ games. A. have B. play C. do D. get 273. In the evening, Lan _______ her homework. A. has B. does C. gets D. do 274. What do you do ______ school? A. after B. on C. from D. to 275. - ______ do you go to school? – In the morning A. How B. What C. Where D. When 276. - What do girls do after school? - _______ play games. A. She B. You C. They D. We 277. _______ do you have geography? On Tuesday A. When B. Which C. Which class D. How 278. My father and I _______ TV every evening. A. watches B. watch C. listen D. listens 279. we have Math ______ Monday an Wednesday. A. in B. at C. on D. from

Tính nhiệt lượng cần cung cấp cho miếng đồng khối lượng 1kg ở nhiệt độ 20oC để nó hóa lỏng ở nhiệt độ 1083oC. Đồng có nhiệt dung riêng là 380 J/(kg.K) , nhiệt nóng chảy riêng là 1,8.10^5 J/kg

Làm hộ mk vs ạ, nhanh nhá 1. ...now on, please remember to come prepared to class with the required books 2. The boy broken the window...a heavy stone 3. Our house is similar...yours. Perhaps yours is a bit large 4. My sister was late for her exam because her alarm clock didn't go... 5 Santa Claus is based...the description of Saints Nicholas Giúp mk hai bài này vs bài trên vs bài dưới nhá

Nêu ảnh hưởng của sóng,thủy triều,dòng biển có ảnh hưởng j đến đời sống con người?

từ độ cao 20m sao với mặt đất thả rơi tự do 1 vật có khối lượng 1 vật 3 kg thẳng đứng xuống đất. chọn gốc thế năng tại mặt đất lấy g 10m/s^2. bỏ qua sức cản không khí .Vật tốc của vật tại đố thế năng bằng đông năng

mình cần gấp 234. How________kilos of meat do you want ? A .much B. many C. long D. often 235. She wants ________an English teacher . A .being B. to be C. is D. be 236. I do not go to school________Sundays . A. on B. in C. at D. for 237. John likes sports very much . He usually plays ________after school . A. games and geography B. soccer and literature C. volleyball and soccer D. volleyball and simming 239. What________your favorit food ? A. do B. does C. is D. are 240. ________does she go jogging? Once a week. A. How often B. How long C. How about D. How 241.There ________ a book and five notebooks on the table. A. is B. are C. am D. do 242. We usually use ________ hour to play sports. A. a B. an C. the D. some 243. Miss Lan has ________ . A. black round eyes B. eyes round black C. round black eyes D. eyes black round 244.My brother ________soccer when it is cold. A. play B. playing C. to play D. plays 245. My father always goes to work ________ his car. A. by B. on C. in D. at 246. Are there ________ apples in the fridge? A. some B. any C. an D. the 247. Thu and Nga help ________mother after school. A. she B. they C. their D. her 248: This is Nam and that _______ Mai. A. she B. are C. it D. is 249: Mr. Minh and Mr. Ba are_______. A. engineers B. doctor C. teacher D. driver 250: _______ is that? - It’s Chi, my classmate. A. What B. Where C. Who D. When 251. ________ brushes her teeth every morning. A. He B. She C. They D. We 252: That is Kien. He is a _______ . A. engineer B. student C. doctors D. teachers 253: Tam: Is _______ a desk? Mai: Yes, it is. A. he B. she C. it D. you 254: My father and my mother _______ in the living room. A. is B. are C. am D. isn’t 255. sixteen, seventeen, _______ nineteen. A. eighty B. eighteen C. eight D. nine 256: books, rulers, _______ , clocks. A. chairs B. board C. window D. table 257: That _______ a door. It’s a window. A. is B. are C. aren’t D. isn’t 258. Hoa is a good student. She _______ at 5.30. A. get B. get up C. gets D. gets up 259. How many floors ______ your school have? A. do B. are C. is D. does

Bằng chứng cơ quan tương đồng + Ví dụ + Ý nghĩa Bằng chứng cơ quan thoái hoá + VD + Ý nghĩa Bằng chứng cơ quan tương tự + VD + Ý nghĩa

làm nhanh nhé 210. “Does Nga play volleyball?” - “No, __________” A. she not plays B. she don’t C. she isn’t D. she doesn’t 211. How many floors__________in your school? A. there are B. there has C. are there D. have there 212. I __________eleven years old. A. am B. is C. are D. all A, B, C 213. __________is a teacher. A. You B. She C. I D. It 214. Stand __________ . A. on B. in C. at D. up 215. Where __________ you live? A. do B. is C. are D. am 216. How old is your father? ~ __________is thity – five. A. She B. He C. I D. They 217. Mr. Lam and Mrs. Lam __________teachers. A. am B. is C. are D. all A, B, C 218. __________ is that? ~ It’s a pencil. A. How many B. How C. Who D. What 219. __________are their pencils. A. This B. That C. It D. These 220Is this an __________? A. ruler B. book C. eraser D. pen 221.I live __________ Le Loi Street. A. on B. at C. in D. up 222.What does Lien do when ________ warm? A. it B. it’s C. its D. they’re 223. ________you like a drink? A. What B. Would C. Want D. How 224. What about ________ to Hue on Sunday? A. to go B. go C. going D. goes 225. Mr & Mrs Brown & their father have ________legs. A. four B. six C. eight D. ten 226. I usually go swimming in hot ________. A. winter B. autumn C. day D. summer 227. There are ________ fingers in one hand. A. two B. five C. ten D. one 228. His mother is a doctor. She works in a ________ . A. hospital B. post office C. restaurant D. cinema 229. Vietnam has two main ________ each year. A. seasons B. months C. weeks D. summers 230. It is twenty – five past ________. A. fifty B. a quarter C. four o’clock D. eleven 231. There is ________soda in the can. A. a B. any C. some D .an 232. ________.weekends he usually goes fishing. A. In B .For C. On D. At 233. Hoa and I ________funny stories. A reading B. am reading C. is reading D. are reading