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taikute221294


Tr0g TN gth0a AS a=0.5mm,D=0.5m,tr0g mjen gjao th0a dem dc 11 van sag traj daj tren d0an 8cm,h0j lamda?
Cau nay thj tjh ra duoc.d0j cau hoj laj chut ,tr0g mjen gjao th0a(d0an MN) cug dem duoc 11 van sag nhug k co van sag nao taj M,N .paj nay lam sao?
Cau nay thj tjh ra duoc.d0j cau hoj laj chut ,tr0g mjen gjao th0a(d0an MN) cug dem duoc 11 van sag nhug k co van sag nao taj M,N .paj nay lam sao?