Các bạn giúp mình bài này với ạ

Để phát triển bền vững môi trường biển của nước ta, vấn đề quan trọng hàng đầu là

1. Có 200 gam dung dịch KOH 20% (dung dịch X). Cần pha thêm bao nhiêu gam H2O vào dung dịch X để thu được dung dịch KOH 16%? 2. Có 30 gam dung dịch CuSO4 20%. Tính nồng độ % của dung dịch thu được khi: a) Pha thêm 20 gam H2O b) Cô đặc dung dịch để chỉ còn 25 gam giúp e 2 bài này với

Vẽ sizuka trong phim Doremon thật cute hộ mình nhé

MN oi giup em vs ah em sap nop rui ( luu y cau 1,2 ko lm ah )

Giúp mk chứng minh bất đẳng thức siêu cấp khó. Mod và chuyên gia giúp e

Đây là lần thứ 5 em hỏi , mong mọi người giúp em câu 7, đề chắc chắn không sai và ra số chẵn ạ

mấy bạn lập dùng mình thời gian biểu để ôn thi hsg với trong 3 tháng hè nhé ( vd : 11h30 luyện nghe 3 phần )

A year ago, Laura reached her lowest point. (1.utterly exhaust)_________ after a short walk, she was picked up off the pavement and driven home by the police. "My feet felt (2. nail)______ to the ground," she recalls. With permanent flu symptoms panic stricken and confined to a wheelchair, she was eventually diagnosed as (3. have)___________ chronic fatigue syndrome, the term doctors now use for her illness. Laura, a 30-year-old marketing manager, (4. since make)__________ a remarkable recovery in her health. She is now able to walk for an hour, swims twenty lengths three times a week and (5. contemplate)_______ going back to work. She puts her new-found sense of well-being down to a technique called cognitive behavior therapy (CBT). CBT (6. aim)_______ to help people understand how the beliefs they hold about themselves and others influence mood and behaviour - and how re-evaluating negative beliefs can help them to feel and behave differently. It (7. be)_______successful in dealing with problems ranging from depression to chronic, unexplained pain. Research shows that CBT can also help people like Laura. Yet many sufferers are bitterly opposed to the treatment, (8. argue) that their condition is physical not psychological. Psychological therapy, they believe, implies that they are to blame and their disorder is not genuine. Laura says CBT (9. help)______ her change the way she thought about her problems without implying that they were her fault "I was an “all-or-nothing” thinker and felt I had to be perfect in everything. The therapy (10. encourage)________ a less perfectionist approach to life and helped me gradually to build up more physical activity."

giải phương trình a) x ² + 2 √2x + 2 =1 b) x ² - √5= 0 Mn giúp mình gấp ạ mình xin cảm ơn