решить уровнение   27401:х-119=398

заполните отсутствующие предлоги People usually don't work ... Saturday and Sunday. My family is ... home today. My mother is busy ... the kitchen. My father is working ... the garden. She is sitting ... the table ... a pen in her hand. I am writing a letter ... my sister. I always clean my room ... Sunday. She has a pen ... her hand.

Стадии развития окуня и лягушки

как из NH3 получить (NH4)3PO4