安全阀阀芯和阀座磨损,锅炉安全阀()。 A.漏气 B.拒动 C.安全阀不到压力定位就

题型:单项选择题

问题:

安全阀阀芯和阀座磨损,锅炉安全阀()。

A.漏气

B.拒动

C.安全阀不到压力定位就动作

D.阀芯和阀座粘住

考点:热力司炉工考试初级热力司炉工初级热力司炉工题库
题型:单项选择题

某市开展了青少年知识产权宣传教育活动,主题为“青春与知识产权同行”。这说明我们青少年

[ ]

A.享有智力成果权

B.享有人格尊严权

C.主要任务是参加社会实践,搞发明创造

D.享有自主选择权

题型:单项选择题

阅读《冬天的芭蕾》一文,回答下列各题。

冬天的芭蕾

韩静霆

是绿蒙蒙的春天了,我还是执拗地想着哈尔滨严冬的冰灯。想起来,就仿佛又重新在那儿生活了一回似的,迷失在晶莹剔透的宫殿里了。

冬天也能燃烧呀,瞧着巧夺天工的冰灯,心不是热得像要化掉吗?在这儿,冰,与那个肃杀的“冷”字绝缘了。冰灯是足以在凄凄历历的北风中温存人们心灵的东西。望着活灵活现的冰雕小鹿,怎能怀疑它没有热烘烘的心脏?观赏冰琢的梅花,也分明感受到暖融融的春风的消息。描绘冰灯的美丽,语言显得多么乏力。“雪骨冰姿”似乎是可以入诗的,在这里不过是句大实话。世间又有什么东西能把冰灯比拟呢?水晶啦,白玉啦,全都在它面前黯然失色。谁见过水晶砌成的九级玲珑塔?谁听说过白玉堆出的插云仙女峰?再说画它更是不易讨好。你只能用背景曲反衬冰灯,它本身是无色的透明体。可是,当月儿初上,冰灯就是凝固的月光了。白天呢,它又抱住冬天懒洋洋的太阳,闪烁着扑朔迷离的光彩。

赶到天暖了,冰融了,窄瘦的松花江结束了凝固的冬眠,变丰满了,粼粼的波涛载着桃花瓣儿流向远方了,冰灯又如何呢?它曾经是从松花江来的,它是江水的精魂,可它融化之后,无声地滋润了泥土,再也寻不到它的踪迹。

遗憾吗?

花树有春华秋实,硕果里藏着开花的回忆;人有青年暮年,白发时也能回顾曾经有过的黄金年华。冰灯却似乎只有青春,它来到世界上就美丽非凡。仿佛它鼓足了劲儿,漂漂亮亮装点一下冬天就情愿化为乌有了似的,半点痕迹也不留。

可是冰灯的姿影,却能在人们的心里找到。

所以我说,冰灯的生命是永恒的。

生命原来也同寓言一样呢,不能用长短衡量价值,重要的是内容。长寿的庸人,活着时已经在别人心里死掉;“生如闪电之耀亮,死如彗星之迅忽”,这样的人却在人们的怀念中获得永生。哦,说到人生,似乎扯远了。那么,朋友,你听过贝多芬的《命运交响曲》之后,并不能留住那乐声呀,但它永久地强化着你的灵魂;你看罢芭蕾舞剧《天鹅湖》,无法阻止帷幕下落,可它依然在陶冶你的情操;你见过月夜悄然迸放的昙花吧?它拼着生命的全部孕蓄,仅作一次短暂的辉煌表演,可你忘得掉吗?

啊,冰灯,冰灯!它就是一个冬天的芭蕾,一支回旋在脑海里的优美乐曲,一个记忆中永恒的通体透明的生命!

是的,是温润的春天了,可我还是时时想着哈尔滨的冰灯,它给我的昭示是悠远的,假如能让我的生命全都换作青春,而寿命不得不缩减,我愿意。

(选自《花魂》,有改动)

小题1:文章第二自然段表现了冰灯的哪三个特点?请简要概括。(3分)

小题2:为什么说“冰灯的生命是永恒的”?冰灯又带给作者怎样的人生感悟?(4分)

小题3:文中画线句子使用了什么修辞方法?请简要分析其表达效果。(3分)

它就是一个冬天的芭蕾,一支回旋在脑海里的优美乐曲,一个记忆中永恒的通体透明的生命!

小题4:作者为什么“执拗地”“时时”想着哈尔滨的冰灯?请从文章内容和写法两方面进行分析。(6分)

题型:单项选择题

使用D-青霉胺治疗的Wilson病患者可能出现下列哪些不良反应()

A.药疹

B.白细胞减少

C.血小板减少

D.震颤暂时加重

E.发热

题型:单项选择题

Section Ⅰ Use of English Directions: Read the following text. Choose the best word(s) for each numbered blank and mark A, B, C or D on ANSWER SHEET 1. (10 Points) With the rapid spread of the internet eye where in the world, and the (1) number of users, one of the most exciting developments on the internet is E-commerce -- (2) commerce. E-commerce has two forms, (3) business-to-business, or B-to-B, and business-to-consumer, or B-to-C. B-to-C was the first of these developments. It grew (4) from the first days when people started to buy things from their homes without going to a shop. First came "catalogue shopping" (5) you choose what you want from a catalogue (6) pictures and other details of everything that is (7) sale. You then send an order with a check by (8) and the things you have chosen sent to your home. Then (9) "television shopping", where (10) a catalogue, the items for sale are shown or (11) on television to attract the customer. (12) , the customer sends a check and the item is delivered to his or her home. B-to-C is the (13) development, where the "catalogue" is (14) on the internet, combining the advantages of both the book catalogue and tile television and indeed adding more (15) The customer makes his choice but rather than sending an order and a (16) through the post, he places the order and pays for it using his credit card, all using the (17) Many people worry about giving (18) of their credit card over the internet and the danger that it may be deceitfully used. (19) , the general view is that with modern systems of secure measures the dangers of the misuse of credit cards is (20) greater in a shop, garage or restaurant than in using it for shopping on the internet.

Read the following text. Choose the best word (s) for each numbered blank and mark A, B, C or D on ANSWER SHEET 1.17()

A.on

B.for

C.at

D.in

题型:单项选择题

一般要求渣洗用合成渣中的FeO低于()。

A.0.3%

B.10%

C.30%

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