TLKH trội hai tính trạng của phép lai AaBbDdEe x AabbDdEe là bao nhiêu?

Trên máy có ghi 500W nghĩa là gì?

viết CTHH phân loại các chất sau: Magie Oxit,Sắt(II) Oxit,Sắt(III) Oxit,Natri Oxit,Bari Oxit,Nhôm Oxit,Lưu huỳnh Trioxit

18: Chứng tỏ rằng với mọi số tự nhiên n thì tích (n + 3)(n +6) chia hết cho 2

II, Choose the best answer to complete the sentence: 1, I wish I (will visit/ could visit/ visit) President Ho’s Mausoleum in Ha Noi someday. 2, We prefer (to watch/ watching/ watch) cartoon on TV everynight. 3, The oil spill has (pollute/ polluted/ pollution) the sea. 4, She is a singer, she is very good( on/ at/ in) singing. 5, The box is (so/ such/ too/ ) heavy that noone can lift it. 6, At 9 last night, Mai (do/ is doing/ was doing) her homework. 7, Lan is interested (at/ in/ on) learning French. 8, They have lived in Viet Nam (since/ ago/ for) 5 years. 9, She is a singer, she (sing) very well. 10. We want to go to the zoo (on motorbike/ by motorbike/ in motorbike) 11. They have learnt English (for/ since/ in ) they were 9 years old. 12.If Lan (come/ comes/ will come) next Sunday, please phone me.

Giúp mình với,mình đag cần gấp để tối nay nộp cho thầy

Làm hộ mk với mk cần gấp cảm ơn mn trước

Bài này khó quá làm hộ minh với

a) (+23)+(-12)+5*2 b) (-5)+(-15)+8+(-8) c) 5-(4-7+12)+(4-7+12) d) -|-5+3-7|-| -5+7| e) 24-(72-13+24)-(72-13) f) | 4-9-5|-(4-9-5)-15+9 g) -20-(25-11+8)+(25-8+20) h) (-20+10-3)-(-20+10)+27 k) (14-12-7)-Dấu ngoặc vuông-(-3+2)+(5-9) l) 14-23+(5-14)-(5-23)+17

Mọi người giúp mk vs thanks very much