关于肾髓质囊肿性病变综合征描述，错误的是（） A.包括髓质囊肿性病变，肾萎缩和肾、视

男性，42岁。右腰痛5年。B超检查：右肾中度积水。腹部X线平片：右侧输尿管中段结石1.2cm。静脉肾盂造影：左肾显示正常，右肾盏扩张，肾盂未显示。右肾穿刺造影：右肾中度积水，输尿管上段扩张2cm，结石下端输尿管有狭窄。目前，对该患者最好的治疗方法是（）。

A.右肾盂造瘘

B.经输尿管镜取石

C.右输尿管切开取石，输尿管成形术

D.右肾切除术

E.体外冲击波碎石

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.

27（）

A. words

B. names

C. ideas

D. characters

乙炔瓶内气体溶解于（）中，气瓶在使用时应直立放置。

A、丙酮

B、水

C、乙醇

D、甲醇

严禁工作人员在工作中移动或拆除（），以确保工作安全。

A、遮栏

B、接地线

C、标示牌

D、隔离开关（刀闸）

下列对胆总管分段哪项不正确

A．十二指肠上段
B．十二指肠内侧段
C．胰腺段
D．十二指肠后段
E．十二指肠壁内段