题干

纳米材料所特有的性能及应用是(  )
① 大大提高材料的强度和硬度 
②降低烧结温度 
③提高材料的磁性
④能制作高贮存密度的量子磁盘 
⑤纳米机器人“医生”能进入人体杀死癌细胞

A:只有①

B:只有①②

C:只有①②③⑤

D:①②③④⑤都是

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D

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    Arguments happen in every healthy relationship—we know it sounds contradictory, but it's true—but they can still have a negative impact if they aren't handled properly. ____

    Take a breath. We know that it can be hard to think clearly when you are angry, so we would first like to encourage you to try to take a second to collect your thoughts before engaging in a dialogue with your partner. ____ If you are not careful you could potentially say what might damage your relationship.

    Take the situation as it is. Even though you are angry and it can be hard to be objective, try to see the situation for what it is. Do not escalate (不断恶化) the argument. ____Try to understand the purpose behind the action—if something happened accidentally, you should not treat as if it were done intentionally.

    ____ If you have done something wrong, the best possible option for you is to admit it. Denying something only makes it more hurtful and often your partner will be able to forgive you much more quickly if you are honest.

    Set ground rules. After a fight you and your partner can have a heart-to-heart talk of what happened. ____ At this point you can set some ground rules for future fights, like not cursing each other or calling each other's names, which might help reduce the intensity of your fights.

    Fighting with someone is never easy. And it's especially difficult when you are arguing with someone that you care about. Thinking carefully and controlling yourself during an argument can help you avoid saying something that could permanently hurt your relationship.

A. Take positive action.

B. Avoid making excuses.

C. Anger can be poisonous.

D. Here is how to maintain good relationship.

E. You can discuss what hurts each of you and how you can move forward.

F. The trick to prevent an argument from destroying your relationship is learning how to fight fair.

G. Ask yourself if this situation is worth arguing about.