Âm thoa phát ra âm có tần số 450 Hz, đàn phát ra âm có tần số 200Hz. Dụng cụ nào phát ra âm cao hơn (bổng hơn)? Vì sao? Giúp mình với!

1. Although we are neighborhood, we have not seen each other

Despite

2. Even though I got very wet in the rain, I did not change my clothes.

In spite of

1.Although we are neighborhood, we have not seen each other

-> Despite.....................

2.Even though I got very wet in the rain, I did not change my clothes.

->In spite of....................

Giúp mik vs ạ đang cần gấp

What does the doctor recommend to eat?

What do happy people do? 

What kind of food will help people to keep fit and stay healthy?