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问题 单项选择题

男性，25岁，发现股骨下段包块就诊，查体局部轻度压痛，关节无明显活动受限，X线检查股骨下段内侧呈溶骨性破坏，轻度向内侧膨胀，软组织内无包块。病灶边缘清晰，无骨膜反应。

患者治疗后出院，下列哪一项检查最为重要

A．膝关节X线检查及胸部X线检查

B．血沉

C．抽血查瘤细胞

D．局部CT监测

E．全身核素扫描

答案

参考答案：A

解析：膝关节X线检查可观察肿瘤的预后。胸部X线检查可早期发现有无肺转移。

填空题

A、B、C、D均为短周期元素。A、B可形成两种液态化合物甲和乙，其最简式分别为BA和B2A。A与D可形成气态化合物DA、DA2。A、B、D可组成离子化合物，该晶体化学式为B4A3D2，其水溶液呈弱酸性。B与D可形成一种极易溶于水的碱性气体X。B与C可形成极易溶于水的酸性气体Y。已知X分子与乙分子中的电子数相等，Y分子与甲分子中的电子数相等。请回答：

(1)A元素为　　　，甲的电子式为　　　　　　　　　　　　。

(2)常温下，pH为a的Y溶液与pH为b的氢氧化钠溶液按体积比1∶10混合后，正好完全反应，则a与b的关系为　　　　　　。

(3)已知X在液态时和水一样，可发生微弱的电离，产生两种含相同电子数的粒子，请写出它电离方程式：　　　　　　　　　　　　　　　　　　　　。

(4)将X和Y的稀溶液按某种比例混合，

①若所得溶液中只含一种溶质，则该溶质是　　　　　　，溶液中离子浓度的大小顺序为　　　　　　　　　　　　　　　　　　　　　　　　　　　　；

②若该溶液是由体积相等的X和Y溶液混合而成，且恰好呈中性，则混合前c(X)　　　　c(Y)，混合前酸中c(H＋)和碱中c(OH－)的关系c(H＋)　　　　c(OH－)(填“大于”、“等于”、“小于”)。
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完形填空
阅读下面短文，从短文后所给各题的四个选项A.B.C.D中，选出可以填入空白处的最佳选项。
In the clinic, I asked if Michael could be retested, so the specialist tested him again. To my 21  , it was the same score.
Later that evening, I _22  _ told Frank what I had learned that day. After talking it over, we agree that we knew our _23_  much better than an IQ test. We 24   that Michael’s score must have been a _25  and we should treat him __26___ as usual.
We moved to Indiana in 1962, and Michael studied at Concordia High School in the same year. He got 27 grades in the school, especially 28 biology and chemistry, which was a great comfort.
Michael _29_ Indiana University in 1965 as a pre-medical student, soon afterwards, his teachers permitted him to take more courses than _30_ . In 1968, he was accepted by the School of Medicine, Yale University.
On graduation day in 1972, Frank and I 31  the ceremony at Yale. After the ceremony, we told Michael about the _  32_ IQ score he got when he was six. Since that day, Michael sometimes would look at us and say _33  , “My dear mom and dad never told me that I couldn’t be a doctor, not until after I graduated from medical school!” It is his special way of thanking us for the _34 _ we had in him.
Interestingly, Michael then _35 _ another IQ test. We went to the same clinic where he had _36 _  the test eighteen years before. This time Michael scored 126, an increase of 36 points. A result like that was supposed to be _37 _ .
Children often do as _38 _ as what adults, particularly parents and teachers, _39_  of them. That is, tell a child he is “ _40_”, and he may play the role of a foolish child.
小题1:
A．joyB．surpriseC．dislikeD．disappointment
小题2:
A．tearfullyB．fearfullyC．cheerfullyD．hopefully
小题3:
A．studentB．sonC．friendD．doctor
小题4:
A．arguedB．realizedC．decidedD．understood
小题5:
A．jokeB．mistakeC．warningD．wonder.
小题6:
A．speciallyB．strictlyC．naturallyD．carefully
小题7:
A．poorB．goodC．averageD．standard
小题8:
A．in B．aboutC．ofD．for
小题9:
A．visitedB．choseC．passedD．entered
小题10:
A．allowedB．describedC．requiredD．offered
小题11:
A．missedB．heldC．delayedD．attended
小题12:
A．highB．sameC．lowD．different
小题13:
A．curiouslyB．eagerlyC．calmlyD．jokingly
小题14:
A．faithB．interestC．prideD．delight
小题15:
A．looked forB．asked forC．waited forD．prepared for
小题16:
A．receivedB．acceptedC．organizedD．discussed
小题17:
A．imperfectB．impossibleC．uncertainD．unsatisfactory
小题18:
A．honestlyB．muchC．well D．bravely
小题19:
A．hear B．learnC．expectD．speak
小题20:
A．wiseB．rudeC．shyD．stupid
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