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01
в
used when we want to talk about a person or thing for the first time or when other people may not know who or what they are
Примеры
She bought a new book yesterday.
Она купила новую книгу вчера.
1.1
неопределенный артикль
used before a singular noun to refer to someone or something that is not specifically identified
Примеры
I need a pen to sign this form.
У него есть проблема, которую нужно решить.
02
один
used to show someone or something belongs to a group or type
Примеры
He is a member of a sports club.
Он член спортивного клуба.
01
нота ля, ля
the musical pitch A, which is a specific note in the diatonic scale commonly used in Western music
грамматическая информация
статус одушевлённости
неодушевлённое
морфологический состав
простое
исчисляемое
singular
not gender specific
собственное
форма множественного числа
A's
02
ангстрем, единица длины
a metric unit of length equal to one ten billionth of a meter (or 0.0001 micron); used to specify wavelengths of electromagnetic radiation
03
один, группа крови A
the blood group whose red cells carry the A antigen
04
первая буква римского алфавита, буква А
the 1st letter of the Roman alphabet
05
аденин, один из четырех нуклеотидов
one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
06
аденин, пуриновое основание
(biochemistry) purine base found in DNA and RNA; pairs with thymine in DNA and with uracil in RNA
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