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Facebook was built on the _______________ of earlier social network sites like MySpace and Bebo.

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My brother is very good at natural_______ subjects such as Chemistry and Physics.

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Simply speaking, ____ is the tools and machines that help to solve problems.

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The scientific method is a way to ask and answer scientific questions by making ____and doing experiments.

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The scientific method is a way to ask and answer scientific questions by making ____and doing experiments.

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While scientists study how nature works, engineers ____new things, such as Products, websites environments, and experiences.

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In Science, you should repeat your___ several times to make sure that the first results weren’t just an accident.

Chọn từ đồng nghĩa với từ được in đậm

Scientific progress brings us many conveniences and advanced machines, such as computers, automobiles, and so on.