Which definition is the best for “semipermeable membrane”?

It is a barrier with tiny openings that let some, but not all, materials pass through.

hi!

it would be because of the artist sixnine.

hope this !

the truman doctrine was an american foreign policy whose stated purpose was to counter soviet geopolitical expansion during the cold war. it was announced to congress by president harry s. truman on march 12, 1947, and further developed on july 12, 1948, when he pledged to contain threats to greece and turkey.