_福州成考网

Why is compared to a fertilizer in Para. 3?

• A、They both absorb light.

• B、They both store heat.

• C、They both help plants grow.

• D、They both cause global warming

How does exercise sharpen the mind according to Para.2?

• A、By increasing the brain siz

• B、By decreasing the protein level.

• C、By extending the time of concentration.

• D、By strengthening brain cells’ connections.

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