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收藏参考答案：
举一反三
下列关于高血压病治疗的说法，正确的是
A.
降压是硬道理，且降得越低患者越能获益
B.
高血压急症的患者，均应立即迅速降低血压至正常值范围
C.
降压目标因人而异，降压治疗应实施个体化治疗
D.
高血压病患者服药一段时间后血压恢复正常，此时可以停药
E.
所有高血压病患者，均应戒烟戒酒
女，48岁。发现颈部肿大2年，时有心慌、气短，月经规律。查体：心率86次/分，皮肤无潮湿多汗，甲状腺Ⅱ度肿大，质软无结节，未闻及血管杂音。为明确诊断首选的检查是
A.
甲状腺B超
B.
甲状腺激素测定
C.
肾上腺激素
D.
甲状腺CT
E.
肾上腺超声
患者，女性，25岁，平素有上腹部规律性疼痛，因工作熬夜，晨呕血400ml，排柏油样便4次，自觉头昏、心悸。血压96/60mmHg，心率108次/分，肝脾未触及，可能的诊断是
A.
肝硬化食管静脉曲张破裂出血
B.
消化性溃疡出血
C.
急性胃黏膜损伤
D.
食管贲门黏膜撕裂征
E.
胃癌出血
支气管哮喘发作是最常见的血气改变是：
A.
pH值上升，PaO2下降，PaCO2降低
B.
pH值上升，PaO2下降，PaCO2上升
C.
pH值下降，PaO2下降，PaO2降低
D.
pH值下降，PaO2下降，PaCO2上升
E.
pH值正常，PaO2下降，PaCO2上升
男，50岁，右上腹痛1月余，全腹痛1小时。查体：T38℃，巩膜轻度黄染；肝右肋下4cm，质硬，触痛；脾未及；腹部呈弥漫性压痛，有可疑移动性浊音。腹穿抽出少量血性液体。该患者最可能的诊断是
A.
门脉性肝硬化伴门脉血栓形成
B.
消化性溃疡合并穿孔
C.
门脉性肝硬化伴结核性腹膜炎
D.
慢性阑尾炎合并穿孔
E.
原发性肝癌结节破裂出血
（）主要为其他通信子系统提供稳定的电源，当市电或UPS主机故障时，通过电池组为通信设备供电，保证通信设备正常运行。
A.
UPS不间断电源系统
B.
专用电话系统
C.
乘客信息系统
D.
广播系统
女，45岁，糖尿病患者。尿糖（＋＋++），血糖25mmolL，使用胰岛素60U后血糖降到10mmolL， 此时应注意补充
A.
氯化钾
B.
氯化钠
C.
氯化钙
D.
碳酸氢钠
E.
细胞色素C
男，48岁，反复上腹痛3年余。近1周来加剧，钡餐提示胃角部龛影，直径1cm，胃酸分析为正常偏低。经内科保守治疗8周后疼痛有所减轻。进一步处理首选
A.
继续保守治疗
B.
加大剂量
C.
反复大便潜血试验
D.
胃镜及活组织检查
E.
手术治疗
（）是整个通信网络的纽带，给通信各子系统及电力系统、信号系统、AFC自动售检票系统、消防报警系统、办公网络等提供传输通道，将各车站、车辆段和停车场的设备与控制中心的设备连接起来。
A.
专用电话系统
B.
传输系统
C.
闭路电视监控系统
D.
时钟系统
男，39岁，上腹部反复疼痛4年，受凉后易诱发。近1周来劳累和疼痛加剧，突然呕血约500mL。10年前曾患急性无黄疸性肝炎，HBsAg（—）。查体：BP95/60mmHg，巩膜无黄染，上腹部无压痛，肝脾未触及。最可能的诊断是
A.
肝炎后肝硬化
B.
胃溃疡出血
C.
急性糜烂性胃炎
D.
原发性肝癌，胃癌
蒸汽供暖系统形式根据凝结水充满管道断面的程度可分为
A.
干式回水系统和湿式回水系统
B.
重力回水系统和机械回水系统
C.
开式系统和闭式系统
D.
单管蒸汽供暖系统和双管蒸汽供暖系统
相关题目：
【单选题】In the Academic Writing part, Alex discussed with Ruoqi on academic skills, such as ______.
A.
plagiarism, paraphrasing and summarizing
B.
plagiarism, paraphrasing and synthesizing
C.
how to avoid plagiarism, paraphrase and summarize
D.
how to avoid plagiarism, paraphrase and synthesize
【单选题】If it would take us a second for a single memory access, how long would it cost for a single access to the external storage?如果说访问一次内存需要1秒，则一次外存访问大概需要：
A.
a hour 1小时
B.
a day 1天
C.
a month 1月
D.
a year 1年
【单选题】$\lim_{x\to \infty } \, \left(\sqrt{x+\sqrt{x+\sqrt{x}}}-\sqrt{x}\right)$
A.
$0$
B.
$1$
C.
$\frac{1}{2}$
D.
$2$
【单选题】$\lim_{n\to \infty } \, \frac{\ln (n)}{\ln (3 n)}$
A.
$\frac{1}{3}$
B.
$3$
C.
$1$
D.
不存在
【单选题】Through the group discussion between ______ , we figured out the differences between adolescence and adulthood.
A.
Abbas, Zuowan and Jialin
B.
Billy, Xuanhui and Jialin
C.
Abbas, Xuanhui and Jialin
D.
Billy, Xuanhui and Zixiao
【单选题】In the main part of Text A, ______ showed us some opinions on the relationship between musical experiences and intelligence.
A.
Kamlesh
B.
Jason
C.
John
D.
Abbas
【单选题】What's the time complexity for searching in a B-tree of order 4 and size n?在存储了n个元素的4阶B树中查找，单个节点进行一次查找的时间复杂度为：
A.
O(1)
B.
O(lgn)
C.
O(n)
D.
O(nlgn)
【单选题】下面说法正确的是
A.
FileWriter类是Writer类的子类
B.
FileWriter类是OutputStreamWriter类的子类
C.
FileWriter类是FileOutputStream类的子类
D.
Wirter类是OutputStreamWriter类的子类
【单选题】How many children are there for each node in a B-tree of order 4?4阶B树中每个节点的分支数为：
A.
1~4
B.
2~5
C.
2~4
D.
3~5
【单选题】During the conversation between Billy, Yuege and Yunpeng, we took a brief look at ______ .
A.
brain development
B.
brain degradation
C.
human evolution
D.
human degeneration
【单选题】口袋中有5个球，编号为1,2,3,4,5。从中任取3个，以X表示取出的3个球的最大号码。则P(X=4)=()
A.
1/10
B.
3/10
C.
5/10
D.
7/10
【单选题】What's the return value for a failed search in a B-tree of order 4?B树查找算法若最终失败，返回值为：
A.
None
B.
NULL
C.
A pointer to the last examined node 指向最后一个所查找节点的指针
D.
A pointer to the root 指向根节点的指针
【单选题】What's the height of a B-tree of order 128 relative to a corresponding BBST?若B树的阶m=128，则它的高度大致是对应的BBST的：
A.
1/5
B.
1/6
C.
1/7
D.
1/8
【单选题】$a_1=\sqrt{2},a_2=\sqrt{2+\sqrt{2}},\dots,a_n=\sqrt{2+a_{n-1}}$当$n \rightarrow \infty$时极限
A.
存在
B.
不存在
【单选题】设随机变量\( X \)服从区间（0,2）上的均匀分布，则\(P(X^2>2) \)=（）
A.
$\sqrt2/2$
B.
$\sqrt2$
C.
$1-\sqrt2/2$
D.
$1-\sqrt2$
【单选题】Which of the following is NOT the reason why she does not like to take photos with the camera?
A.
It was easy to break
B.
It was too heavy
C.
it is easy to get stolen
D.
it is too expensive
【单选题】What “eat earth” means?
A.
Having to spend less after spending a lot during the shopping festival.
B.
Living a luxurious life after earning a lot of money.
C.
Having failed to live a modest life.
D.
Living a luxurious life.
【单选题】Popular novels can be adapted and made into ____; ____ and _____.
A.
films; television programs; video games
B.
cartoons; dramas; games
C.
websites; televisions; audio programs
D.
films; cartoons; games
【单选题】下面说法中错误的是
A.
FileReader类是Reader类的间接子类
B.
InputStreamReader类是Reader类的子类
C.
BufferedReader类可以读取一行
D.
BufferedReader的readLine()函数，如果没有数据时会返回0
【单选题】What's the 'overflow' for a B-tree?B树的上溢是指：
A.
The property of a B-tree is violated due to removing a key 删除关键码后违反了B树的性质
B.
The property of a B-tree is violated due to inserting a key 插入新的关键码后违反了B树的性质
C.
The property of a B-tree is violated due to a split 分裂后违反了B树的性质
D.
A B-tree becomes too high B树的高度过高
【单选题】设随机变量服从区间（0,2）上的均匀分布，则$Y=X^{2}$在（0,4）上的密度函数为（）
A.
$\frac{1}{3\sqrt{y}}$
B.
$\frac{1}{\sqrt{y}}$
C.
$\frac{1}{2\sqrt{y}}$
D.
$\frac{1}{4\sqrt{y}}$
【判断题】法国“戴高乐”号航母的末端防御武器有：“紫苑”舰空导弹，其有效射程是30千米；还有“西北风”舰空导弹，有效射程是4千米。“戴高乐”号航母的末端防御武器，可以有效拦截来袭的反舰导弹等武器。
A.
正确
B.
错误
【单选题】Which consequence follows as a B-tree becomes higher?B树高度的增加一定伴随着：
A.
Each node has a larger number of keys 每个节点所存放的关键码数量增加
B.
Each node has a smaller number of keys 每个节点所存放的关键码数量减少
C.
Splitting to the root 分裂到根
D.
Splitting to the leaves 分裂到叶
【单选题】令$f(x)=\frac{x^{2}}{1+x^{2}}$,则它的不定积分为（）
A.
x-arccotx+c
B.
x-arccosx+c
C.
x-arcsinx+c
D.
x-arctanx+c
【多选题】Gardening is ______.
A.
a great daily exercise
B.
a great way to keep your lawn beautiful
C.
a great way to keep you healthy
D.
landscape painting
【单选题】Choose the most appropriate answer by completing the sentences below or answering the questions.1. Why is Billy a bit disappointed about the film?
A.
The quality of the film is comparable with the novel itself.
B.
The movie is unbelievable, for the plot is not true to the novel.
C.
The stories producers and directors tell are unbelievable.
D.
While adapting the original novels into films, producer exaggerated too much.
【单选题】The differences between the original novel and their adapted film depend on _______, _______ and _______.
A.
writers; actors; audience
B.
writers; actors; producers
C.
directors; actors; audience
D.
directors; producers; audience
【单选题】The underflow of a B-tree happens whenB树的下溢发生于：
A.
the height of the tree decreases B树高度减少
B.
the property of the B-tree is violated due to inserting a key 插入关键码后违反了B树的性质
C.
the property of the B-tree is violated due to deleting a key 删除关键码后违反了B树的性质
D.
inserting a key to a leaf node 在叶节点插入关键码
【单选题】The height of a B-tree decreases only whenB树高度的减少只会发生于
A.
merging two children of the root 根节点的两个孩子合并
B.
removing the root 根节点被删除
C.
rotating the root 根节点发生旋转
D.
there are multiple keys in the root 根节点有多个关键码
【单选题】Literature shows the story with languages so that readers can have more _______.
A.
consideration
B.
depression
C.
imagination
D.
inspiration
【单选题】Why do Amanda and Zheyu feel very down today?
A.
They are worried about homework.
B.
They are worried about exams.
C.
They are worried about interviews.
【多选题】以下哪种说法是正确的——
A.
人生观是对人生目的、意义的根本看法
B.
世界观是人生观重要组成部分
C.
价值观是人生哲学的核心，是人与人之间对于人生价值的不同看法
D.
哲学只是关于世界观的学问
【单选题】What does “be apt to do something” mean?
A.
be more likely to do something
B.
be angry to something
C.
be happy to do something
D.
be taught to do something
【多选题】A node in a red-balck tree could be红黑树节点的颜色有
A.
red 红
B.
black 黑
C.
yellow 黄
D.
blue 蓝
E.
green 绿
F.
purple 紫
【单选题】What does “turn out” imply?
A.
The reason for doing something.
B.
Something happens in that way or has the result the consequence of something.
C.
The potential risk of doing something.
D.
The original plan of doing something.
【单选题】What's unique about red-black trees compared to AVL trees? 红黑树相比于AVL树的特点是：
A.
The balance factor of each node falls within [-1, 1] 每个节点的平衡因子的绝对值不超过1
B.
It is a balanced binary search tree 是平衡二叉搜索树
C.
The search time is O(lgn) 支持O(lgn)时间的查找
D.
The topology changes no more than O(1) after each insertion/deletion每次插入/删除后拓扑结构的变化不超过O(1)
【单选题】You may choose one or more than one correct answer(s).1. Why is the student coming for the teacher?
A.
He quarreled with his classmates.
B.
He was stressed about the college entrance examination.
C.
He missed several classes due to illness
D.
He was often stressed when he faced an academic problem.
【多选题】好的选题从哪里来？
A.
知己知彼：你对一个领域的了解程度会直接影响你的选题
B.
现实需求：真正来自现实生活的需求最有生命力（洞察力）
C.
长期思考：有的问题需要多年的思考
D.
宽广胸怀：一个人的出发点直接决定了选题可能的高度
E.
好的选题非一日之功
【单选题】下列集合中，有最大值的集合是 ( ).
A.
$ \{x|x\in (0,1),x\in Q\} $
B.
自然数集
C.
有限个数构成的集合$ \{a_1,a_2,\cdots,a_n\} $
D.
$ \{x\in R|x^2-2x-3 < 0\}$
【单选题】$ \bigcup\limits_{n = 1}^\infty {(1 + \frac{1}{n},2 - \frac{1}{n})} = $ ( ).($\bigcup\limits_{n = 1}^\infty$表示n从1取到无穷相应的所有集合取并集)
A.
$(1,2)$
B.
$[1,2)$
C.
$(1,2]$
D.
$[1,2]$
【单选题】设集合$A=[-1,1], B=(0,2) $，则$A\backslash B =$ ( ).
A.
$[-1,0]$
B.
$[-1,0)$
C.
$(-\infty ,0]$
D.
$( - \infty ,0] \cup [2, + \infty ) $
参考解析：
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