题干

如图所示的物态变化过程中,放出热量的是(   )

A: 冬天哈出的“白气”  

B: 正在消融的冰冷

C: 夏天湿衣服晾干  

D: 放入衣箱中的樟脑球变小

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答案(点此获取答案解析)

A

同类题3

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。

How to Prepare for Guests

    Guests are people whom we welcome sincerely and we should make sure they feel comfortable like they are in their home. Sometimes we get enough time to make preparations for guests, but sometimes we don't. This article will be beneficial for both these kinds of people. ____

    Get a bedroom for your guests. It doesn't have to be complicated. Change bed covers, clean the bathroom and you can even add a nice scented(芬芳的) candle to spice things up. These are simple things you can do even if you are a very busy person. ____

    Know what your guests' favorite foods are so that you can make for them and serve. Don't forget to note down if they are allergic to any certain kind of food to save the embarrassment(难堪). If you are among one of those people who can hardly manage the time to cook for your guests then take them to the restaurants so that they can taste new foods or enjoy their favorite ones.

    Plan activities to have a good time with your guests. ____ If they come over the weekends then plan for some indoor activities to have fun. It's also a good way to remove your tiredness from your boring life.

    ____ It can happen that you may not be able to be with your guests for a certain amount of time while they are staying in your home. In that case you must declare it to them and may have someone else to accompany them while you are absent.

    When your guests say goodbye, give them something as a token(信物) of love to remember the days they stayed with you. ____

A. Declare your absence.

B. Allow them to come and go as they please.

C. Just bear in mind everything fresh and clean will do fine.

D. If they come during the vacation then you can plan for outdoor activities.

E. Here are some ways to help you to put away things well in a short amount of time.

F. Make your guests feel even more welcome by including them in activities such as outings, or movies.

G. It can be just a photo in a beautiful frame that will remind them of beautiful moments that they spent with you.

同类题4

                                                                                     风筝
       ①北京的冬季,地上还有积雪,灰黑色的秃树枝丫杈于晴朗的天空中,而远处有一二风筝浮动,在我是一种惊异和悲哀
      ②故乡的风筝时节,是春二月,倘听到沙沙的风轮声,仰头便能看见一个淡墨色的蟹风筝或嫩蓝色的蜈蚣风筝。还有寂寞的瓦片风筝,没有风轮,又放得很低,伶仃地显出憔悴可怜的模样。但此时地上的杨柳已经发芽,早的山桃也多吐蕾,和孩子们的天上的点缀相照应,打成一片春日的温和。我现在在哪里呢?四面都还是严冬的肃杀,而久经诀别的故乡的久经逝去的春天,却就在这天空中荡漾了。
       ③但我是向来不爱放风筝的,不但不爱,并且嫌恶它,因为我以为这是没出息孩子所做的玩艺。和我相反的是我的小兄弟,他那时大概十岁内外罢,多病,瘦得不堪,然而最喜欢风筝,自己买不起,我又不许放,他只得张着小嘴,呆看着空中出神,有时竟至于小半日。远处的蟹风筝突然落下来了,他惊呼;两个瓦片风筝的缠绕解开了,他高兴得跳跃。他的这些,在我看来都是笑柄,可鄙的。
        ④有一天,我忽然想起,似乎多日不很看见他了,但记得曾见他在后园拾枯竹。我恍然大悟似的,便跑向少有人去的一间堆积杂物的小屋去,推开门,果然就在尘封的什物堆中发现了他。他向着大方凳,坐在小凳上;便很惊惶地站了起来,失了色瑟缩着。大方凳旁靠着一个蝴蝶风筝的竹骨,还没有糊上纸,凳上是一对做眼睛用的小风轮,正用红纸条装饰着,将要完工了。我在破获秘密的满足中,又很愤怒他的瞒了我的眼睛,这样苦心孤诣地来偷做没出息孩子的玩艺。我即刻伸手折断了蝴蝶的一支翅骨,又将风轮掷在地下,踏扁了。论长幼,论力气,他是都敌不过我的,我当然得到完全的胜利,于是傲然走出,留他绝望地站在小屋里。后来他怎样,我不知道,也没有留心。
      ⑤然而我的惩罚终于轮到了,在我们离别得很久之后,我已经是中年。我不幸偶而看到了一本外国的讲论儿童的书,才知道游戏是儿童最正当的行为,玩具是儿童的天使。于是二十年来毫不忆及的幼小时候对于精神的虐杀的这一幕,忽地在眼前展开,而我的心也仿佛同时变了铅块,很重很重地坠下去了。