.A、B、C、D为常见气态单质。已知:① A和B可以在放电条件下发生化合反应,其

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问题:

.A、B、C、D为常见气态单质。已知:① A和B可以在放电条件下发生化合反应,其产物还可以与B化合生成红棕色气体;

②C分别与A、B反应生成的两种化合物分子E、F中都含有10个电子;

③C和D反应生成的化合物J易溶于水,在其溶液中滴加AgNO3溶液,生成白色沉淀。

(1)E与J 按物质的量2:1通入F中得到的溶液中存在的四个平衡体系,(用方程式表示):

                                                     

                                                    

                                                     

                                                     

已知该溶液呈碱性,溶液中离子浓度由大到小的顺序为              

(2)A、C、D所含元素可组成一种离子化合物R,该化合物R在重水DO中发生水解反应的化学方程式是                                   。

考点:单质磷及其化合物氮气二氧化氮
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亚洲分布最广的气候类型是[ ]

A.热带雨林气候        

B.亚热带季风气候

C.温带大陆性气候      

D.地中海气候

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When I first entered university, my aunt, who is an English professor, gave me a new English dictionary. I was (16) to see that it was an English-English dictionary, also known as a monolin-gual dictionary. (17) it was a dictionary intended for non—native learners, none of my classmates had one (18) , to be honest, I found it extremely (19) to use at first. I would look up words in the dictionary and (20) not fully understand the meaning, I was used to the (21) bilingual dic-tionaries, in which the words are (22) both in English and Chinese, I really wondered why my aunt (23) to make things so difficult for me. Now, after studying English at university for three years, I (24) that monolingual dictionaries are (25) in learning a foreign language.

As I found out, there is (26) often NO perfect equivalence(对应) between two (27) in two language. My aunt even goes so far as to (28) that a Chinese "equivalent" can never give you the (29) meaning of a word in English! (30) , she insisted that I read the definition(定义) of a word in a monolingual dictionary (31) I wanted to get a better understanding of its meaning. (32) , I have come to see what she meant.

Using a monolingual dictionary for learners has helped me in another important way. This dictionary uses a(n) (33) number of words, around 2,000, in its definitions. When I read these definitions, I am (34) exposed to (接触)the basic words and learn how they are used to explain objects and ideas. (35) this, I can express myself more easily in English.

25()

A. natural

B. better

C. easier

D. convenient

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患者男,56岁。手足增大、面容改变10年。10年前家人发现容貌改变,眉弓和下颌突出,口唇肥厚,鞋号从41码增至46码,伴手足发胀,间断额部胀痛,乏力、双颞侧偏盲,夜间打鼾严重,有呼吸暂停和憋醒,性功能减退、胡须生长缓慢。上述症状进行性加重,近半年体力下降,能上2层楼,劳累后感胸闷、气促。既往史及家族史(-)。PE:肢端肥大症面容,皮肤粗厚潮湿,BP160/95mmHg,HR94次/分,心界向两侧扩大,桶状胸,呼吸音粗,双下肢轻度压凹性水肿。

该患者应该选择的最佳治疗方案为()

A.经蝶垂体腺瘤切除术

B.γ刀放射治疗

C.长效生长抑素治疗

D.长效生长抑素治疗后手术治疗

E.经蝶垂体腺瘤切除术后长效生长抑素治疗

F.γ刀放射治疗后长效生长抑素治疗

题型:填空题

病人排便后肛门处剧烈疼痛,并出现一个圆形肿块,较硬,压痛明显,应诊断为()

A.直肠息肉脱出

B.内痔脱出嵌顿

C.肛裂并前哨痔

D.血栓外痔

E.肛周脓肿

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保证合同约定的保证期间早于主债务履行期限的()。

A.视为没有约定

B.在约定保证期间终止

C.保证期间为主债务履行期届满之日起六个月

D.保证期间为主债务履行期届满之日起二年

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