Trắc nghiệm: b. Back in 1954. Hanoi was a small city with a population of about 530.000 residents in an area of about 152 sq km. | Gửi trắc nghiệm |
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Trắc nghiệm: b. Back in 1954. Hanoi was a small city with a population of about 530.000 residents in an area of about 152 sq km. | Gửi trắc nghiệm |