Mom and dad are the most important people in your life. They have been looking after you since you were born， you should always love them. You should also get on well with them. But some children don't know how to do this. Here are some ways to help you.

    Spend more time with your parents. Don't spend too much time playing computer games or watching TV. Ask your parents to play with you. Talk or go outside with them.

    Be kind to your parents. You can make them happy with a smile when you come home. You can send your mother a card on Mother's Day or tell your father a joke on his birthday. You can also clean your room by yourself.

    Work hard. If you do your best in your studies， your parents will be proud of you.

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随着社会的发展、科技水平的不断提高，钢铁工业区位选择发生了3次变化。下列说法正确的是（   ）