Để phân biệt dung dịch NáO4 và dung dịch NaCl người ta dùng

This is_______because students study and live there. a primary school a boarding school an local school a lower secondary school

Cho a//b B1 =60 độ Tính A1, A2, A3, A4, B2, B3, B4

nếu 1 quả thiên thạch đag bay qua quỹ đạo trái đất thì nó có rớt xuống trái đất ko Giải thích và đáp án Không gg

1.my teacher (provide)..... an interesting activity in class. 2.we (not work).... at the moment.We're on a break. 3.They(do).... Maths homework now. 4.Be quiet!The children (study).... in the room. 5.My brother(not do).... the dishes.He (watch).... Tv in his room. 6.My younger brother (walk).... to school with his friend now. 7.Don't forget to take your umbrella.It (rain)..... 8.I'm sorry I can't hear what you(say).... because everybody(talk)... so loudly. 9.Where are the childen? They (read).... books in the library. 10.My brother (complete).... his homework right now. 11.Linda (make)... breakfast at the moment. 11.My sister ( do).... the laundry right now. 12.I (look).... for Jack.Do you know where he is? 13.My father ( not work)..... in hanoi at the moment. 13.I ( clean)..... the kitchen floor with my mother now. 14.She ( teach).....students at a local secondary school at present. 15.They(visit).... London. 16.Look!My father(wash).... his car in the yard. 17.My english teacher (explain)..... the meaning of the words for us. 18.We(enjoy).... an interesting film in the cinema. 19.My grandfather (buy).... some fruits at the supermaket. 20.Hannah (not study).... French in the library.She's at home with her classmates. 21.She(run)..... in the park. giúp mik với ạ Mik đang cần gấp.Cám ơn nhiều ạ.

Phân tích nhân vật Tấm trong truyện cổ tích “Tấm Cám”, từ đó làm rõ triết lý “ở hiền gặp lành” của dân tộc Việt Nam từ ngàn xưa để lại.

Vẽ anime/chibi/đậu mầm giúp ạ. Cảm ơn

Chứng minh rằng với x khác = 0, ±1, biểu thức sau không phụ thuộc vào biến `P = {x^2 + x + 1}/{x^2+x} - {x^2 - x + 1}/{x^2-x} )* {x^4 + x^3 - x^2 - x}/{x + 1}`

Giải thích chi tiết giúp em ạ!! Aii giúp nhanh em tăng 5 sao ạ

1. Nga is 154 cm tall. Lan is 158 cm tall. Ngoc is 160 cm tall. -> Ngoc ........................................................... 2. No one in my class is taller than Tom and Tony. -> Tom and Tony ........................................... 3. No one in my class is more intelligent than us. -> We ............................................................... 4. No river in the world is longer than the Nile. -> Nile river ..................................................... 5. No one in my family is better than Susan. -> Susan .......................................................... Ai trả lời nhanh giúp em nha, vã lắm rồi :|