co 12 cai nhan , trong do co 1 cai bi mat pham chat( nhe hon hoac nang hon)

bang 1 can robecvan va kg co qua can nao, hay tim ra cach chi can toi da 4 lan la co the chi ra cai bi mat pham chat do

no nang hay nhe hon

CO MOT NGUOI YEU CU DEN GAP MOT CO GAI  NOI CHO ANH HON EM LAN CUOI ,CO GAI NOI LA ANH HAY HON CHO NAO MA CHONG EM CHUA HON? CAI GI

di nguoc xuoi hay gio xuoi cai nao co loi cho may bay cat canh hon?

hay neu dac diem thich hop giua dong vat bo sat voi dong lat luong cu ? Tu do cho biet nhom dong vat nao thich nghi cao hon doi voi doi song tren can ?

so sanh giua trang ve den cai nao hon cai nao

Khi nao cai mieng cua minh hoat dong nhiu hon cai nao

lay vi du ve 1 tap hop

nguoi ta dat ten cho tap hop nhu the nao

viet tap hop A cac so tu nhien nho hon 5. chi ra cac phan tu cac tap hop tu A. so 1 co thuoc tap hop A hay ko, viet ki hieu. so 6 co thuoc tap hop A hay ko, viet ki hieu

viet tap hop B cac so tu nhien nho hon 6 bang 2 cach

viet tap hop D cac so tu nhien nho hon 7 roi dien ki hieu thich hop vao o vuong : 2.. D; 10..D

viet tap hop cac chu cai trong tu ''nha trang ''

1 gio 25 phut so voi 25 phut , cai nao nhanh hon va nhanh hon bao nhieu phut

1) HNO₃ voi H₂SO₄ cai nao manh hon