题干

下列说法正确的是        (   )

A:钢铁在海水中比在河水中更易被腐蚀,主要原因是海水含氧量高于河水

B:蚕丝、羊毛和淀粉分别属于纤维素、蛋白质和多糖

C:不可用铝制餐具长时间存放酸性、碱性食物

D:凡含有食品添加剂的食物对人体健康均有害,不宜食用

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答案(点此获取答案解析)

C

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根据短文内容,从短文后的选项中选出能填入空白处的最佳选项,选项中有两项为多余选项。

    Want to be happy and enjoy your life? Here are four ways to bring you happiness.

● Share appreciation

    Tell someone how much you appreciate(欣赏)them. Thank them sincerely for being part of your life. ____. When you share with someone your appreciation, they will not forget you.

____

    One of the best ways to strengthen new ideas in your mind is to share them with others. The more often you share what you've learned, the stronger that information will become in your memory. Sharing knowledge also provides solutions to problems. The more knowledge we share, the more knowledge we receive in return.

● Share friendship

    Let your friends know that you are willing to be there when they need you. Introduce two friends who don't know each other. ____.

● Share experience

    Keep written or photo journals of your life. ____. Share a happy memory. Also share the difficult times that have helped you become stronger and wiser. When shared, the value of these experiences multiplies.

    ____. We make a living by what we get, but we make a life by what we give.

 A. Share knowledge and ideas.

 B. Record successes and failures.

 C. We succeed with the help of others.

 D. Happiness is not so much in having as sharing.

 E. You can spend time with the people that you love.

 F. Feeling appreciated is one of the most important needs that people have.

 G. If you'd like to have many friends, share friendship with others generously.