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[单选题]男童，8岁。右下第一恒磨牙深龋，去除大块腐质，近髓处留少许软化牙本质，上方用Ca(OH)2盖髓后充填。下次复诊进行二次去腐质的时间是
A.1～2周
B.3～4周
C.6～8周
D.10～12周
E.15周

热门试题:

[单选题]排烟口与附近安全出口沿走道方向相邻边缘之间的最小水平距离不应小于()。
A. 1.0m
B. 1.5m
C. 2.0m
D. 2.5m

[单项选择]

2009 was the worst year for the record labels in a decade. (31) was 2008, and before that 2007 and 2006. In fact, industry revenues have been (32) for the past 10 years. Digital sales are growing, but not as fast as traditional sales are falling.
Maybe that’s because illegal downloads are so easy. People have been (33) intellectual property for centuries, but it used to be a time-consuming way to generate markedly (34) copies. These days, high-quality copies are (35) . According to the Pew Internet project, people use file-sharing software more often than they do iTunes and other legal shops.
I’d like to believe, as many of my friends seem to, that this practice won’t do much harm. But even as I’ve heard over the past decade that things weren’t (36) bad, that the music industry was moving to a new, better business model, each year’s numbers have been worse. Maybe it’s ti
A. constraints
B. consciousness
C. norm
D. etiquette

[单选题]根据《土工试验方法标准》GB/T50123-2019,某土样的含水率的两次测定的结果是 12.5%和 13.5%,则该土样的含水率为( )。
A.13%
B.13.0%
C.12.5%
D.13.5%

[单项选择]Frederic Chopin was born in Zelazowa Wola, Poland, on February 22, 1810, to a French father and Polish mother. His father, Nicholas Chopin, was a French tutor to many aristocratic Polish families, later accepting a position as a French teacher at the Warsaw Lyceum.
Although Chopin later attended the Lyceum where his father taught, his early training began at home. This included receiving piano lessons from his mother. By the age of six, Chopin was creating original pieces, showing innate prodigious musical ability. His parents arranged for the young Chopin to take piano instruction from Wojciech Zywny.
When Chopin was sixteen, he attended the Warsaw Conservatory of Music, directed by composer Joseph Elsner. Elsner, like Zywny, insisted on the traditional training associated with Classical music but allowed his students to investigate the more original imaginations of the Romantic style as well.
As often happened with the young musicians of both the Classical and Romantic
A. A gifted composer and a radical revolutionist.
B. A renowned pianist with great political ideal.
C. A gifted composer, pianist and a patriot.
D. A renowned pianist with little interest in performance.

[单项选择]患严重急性胰腺炎的病人不需要
A. 抗生素
B. 钾
C. 液体治疗
D. 氯化钠
E. 钙

[判断题] 行车中遇到正在进行作业的道路养护车辆、工程作业车时要注意避让。
A.正确
B.错误

[单项选择]9，1，4，3，-40，( )
A. 81
B. 80
C. 121
D. 120

[单项选择]根据我国刑法规定，有期徒刑的期限一般为( )以下。
A. 6个月以上15年
B. 1年以上20年
C. 1年以下15年
D. 6个月以上20年

[单项选择]{{B}}Passage Two{{/B}}

Questions 62 to 66 are based on the following passage.
How old is "old" The answer has changed over the years. Two hundred years ago, you were old at 35. That was the average life expectancy then. At the turn of the 19th century, as medical knowledge advanced, the average life expectancy increased to 45. In 1950, 70-year-olds were really old. Today, a healthy 70-year-old is looking forward to many more active years.
So, how old is old The answer is one you’ve heard many times, from all sorts of people. "You are as old ( or young) as you feel. " The calendar simply tells you how many years you have lived. Your body tells you how well you’ve lived.
"Youth", wrote an unknown author, "is not a time of life--it is a state of mind. Nobody grows old by living a number of years; people grow old b
A. One is likely to live an entirely healthy life.
B. Cheerful people will suffer less when they grow old.
C. People tend to look young if they take more care of themselves.
D. We will find some models to follow if we want to stay young.

[单项选择]
{{B}}Passage One{{/B}}

A mobile phone is no longer just a phone -- it is also a music player, video camera and personal organizer. And mobile phones with television programming are just around the corner. But the more functions cell phone manufacturers add, the greater the amount of power the phones use and the less practical running them on lithium (锂) batteries becomes -- so the race to find a viable alternative is on.
Two of the world’s biggest electronics makers, Hitachi and Toshiba, are currently competing against each other to come up with an alternative, most likely to be micro fuel cells. The task has been set by Japan’s second largest mobile phone provider, KDDI, which wants its customers to soon be able to use special television programming on their handsets, and has asked the two electronics companies to come up with a better po
A. Easy to catch fire.
B. Portable.
C. Inexpensive.
D. Available everywhere.

[填空题]CPU交替执行操作系统程序和用户程序。在执行不同程序时，根据运行程序对机器指令的使用权限而将CPU置为不同的状态。CPU的状态属于 ______ 的一位。人多数计算机系统将CPU执行划分为 ______ 和 ______ 两种状态。

[单选题]患者背痈渍后，脓水稀少，坚肿不消，精神不振，面色无华，脉数无力。治疗应首选
A.八珍汤
B.丑四物汤
C.透脓散
D.四君子汤
E.托里消毒散

[单选题]一个国家走什么样的道路，只有这个国家的人民最有发言权，一副药方不可能包治百病，一种模式不可能解决所有国家的问题，生搬硬套或强加于人都可能水土不服。这段话体现的哲理是（）。
A.事物的矛盾具有特殊性
B.任何两事物之间都存在矛盾
C.事物的矛盾具有普遍性
D.任何事物都具有优点和缺点

[单选题]
目前在Internet上使用的网络服务模式是( )模式
A.浏览器/服务器
B.对等网
C.对等式
D.客户机/服务器

[单选题]—般B类事故构成条件之一是造成100万元以上 ( )万元以下直接经济损失。
A.300
B.500
C.800
D.1000

[单项选择]下列有关SID码的表述中，正确的是（）。
A. SID码是光盘复制序次码的简称
B. 每一家复制企业都有一个特定的统一SID码
C. SID码由复制单位按有关技术标准设定
D. 每张正式出版的激光视盘的内圈都压有SID码

[判断题]脚手架应经验收合格后方可使用。上下脚手架应走斜道或梯子，禁止作业人员沿脚手杆或栏杆等攀爬。
A.正确
B.错误

[多选题]在电气设备上工作,应执行( )等保证安全的技术措施。
A.停电
B.验电
C.装设接地线
D.悬挂标识牌和装设遮拦

[判断题]根据《配电安规》，使用固定式抱杆立、撤杆，抱杆基础应平整坚实，缆风绳应分布合理、受力均匀。
A.正确
B.错误

[单项选择]在各类有机非电解质之间，其毒性大小依次为（）。
A. 芳烃>醇>酮>环烃>脂肪烃
B. 醇>芳烃>酮>环烃>脂肪烃
C. 芳烃>酮>醇>环烃>脂肪烃
D. 芳烃>醇>环烃>酮>脂肪烃

[单项选择]交流电动机耐压试验中绝缘被击穿的原因可能是（）。
A. 试验电压高于电机额定电压两倍
B. 鼠笼式转子断条
C. 长期停用的电机受潮
D. 转轴弯曲

[简答题]

[背景资料]：我国现行的道路相关标准和规范中尚未对风化料能否用于路基填筑做出明确规定。在昆明市及其周边地区有一种当地俗称“阳干石”的风化玄武岩储量十分丰富。昆明市广福路（属城市快速路）改扩建工程中，建设单位欲将这种风化料应用于路基填筑中。“阳干石”外表呈棕褐色，开挖出来时质地坚硬，但其耐候性差，经暴晒、风吹和雨水浸泡的交替作用后容易变得疏松甚至剥落。
问题：

要将“阳干石”用于路基填筑，应对其进行哪些试验研究？

[单选题]粗糙度符号Ra表示（）。
A.轮廓算术平均偏差
B.微观不平度十点高度
C.轮廓最大高度
D.轮廓平均高度

[单选题] 承担机车重量，产生、传递机车牵引力和制动力的装置是（）。
A.车体
B.牵引缓冲装置
C.一系悬挂装置
D. 转向架

[判断题]在倒闸操作中发生疑问时，可先操作完后再向值班负责人报告，弄清问题后，将错误操作的设备改正过来。
A.正确
B.错误

[单选题]乳化液具有良好的（）性能但（）性能较差。①冷却 ②润滑 ③防锈 ④清铣。正确答案是（）
A.①②
B.①③
C.②③
D.②④

[单选题]在属地党委政府的统一领导下，自成作战指挥体系，并坚持( )的原则。
A.统一指挥逐级传达
B.统一指挥逐级指挥
C.统一指挥统一作战
D.统一指挥逐级执行

[简答题]中国梦的内涵是什么？

[单选题]列车停站或初起动，站、车客运人员发现危及旅客人身安全或行车安全，需紧急叫停列车时，使用（）频率，呼叫司机停车。
A.457.950 MHz
B.457.725MHz
C.457.700 MHz
D.467.200 MHz

[单选题]申请个体行医的执业医师,须经注册后在医疗.预防.保健机构中执业满()
A.2年
B.3年
C.4年
D.5年
E.6年

[单项选择]房地产开发项目前期策划的核心内容是（）。
A. 市场研判
B. 市场定位
C. 运行建议
D. 经济评价

[简答题]同步器下限

[单选题]某日天降小雨，一辆网约车以50公里/小时的速度通过一转弯下坡路段处（限速30公里/小时）时，车辆驶出路外坠入深沟，导致1人死亡、2人受伤。导致该事故的直接原因是(　　)。
A.疲劳驾驶
B.雨天路滑
C.制动失效
D.超速行驶

[判断题]申请中长期贷款的，新建项目的企业法人所有者权益与项目所需总投资的比例不低于国家规定的投资项目资本金比例。( )

[简答题]简述纵向一体化战略的劣势。

[单选题]线路中断，铁路组织原列车绕道运输时，旅客原票（）。
A.不补不退
B.失效
C.应退票
D.补收票价差额

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