Срочно помогите даю 30 второй номер

Question

Срочно помогите даю 30 второй номер

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Answer 1

1-First sketches of submarines were made be Leonardo da Vinci in the late 1400s
2-The first real submarine was built in 1890s(by people)
3- Today billions of dollars are spent on building submarines(by countries)

Comments

Спасибо