[单项选择]One of the most interesting paradoxes in America today is that Harvard University, the oldest institution of higher learning in the United States, is now engaged in a serious debate about what a university should be, and whether it is measuring up.
Like the Roman Catholic Church and other ancient institutions, it is asking--still in private rather than in public--whether its past assumption about faculty, authority, admissions, courses of study, are really relevant to the problems of the 1990’s.
Should Harvard or any other university be an intellectual sanctuary, apart from the political and social revolution of the age, or should it be a laboratory for experimentation with these political and social revolutions, or even an engine of the revolutions This is what is being discussed privately in the big clapboard houses of faculty members around the Harvard Yard.
The issue was defined by Walter Lippmann, a distinguished Harvard graduate, several years ago. "If the universi
A. is a sad symbol of our general bewilderment
B. will soon be over, because times are bound to change
C. is of interest mostly to Harvard men and their friends
D. will influence future life in America
[填空题]
Large animals that inhabit the desert have evolved a number of
adaptations
for reducing the effects of extreme heat. One adaptation is to be
light in
color, to reflect other than absorb the sun’s rays. Desert mammals
also depart 62. ______
from the normal mammalian practice
of maintaining a continuous body
63. ______
temperature. Instead of trying to keep down the body
temperature deep inside the
body, and which would involve the expenditure of
water and energy, desert 64.
______
mammals allow their temperatures to rise to what would normally be
fever
height, and the temperature as high as 46 degrees Celsius have been
measured 65. ______
in Grant’s gazelles. The
overheated body then cools down during the cold
desert night, and indeed the
temperature may fall usually low by dawn, as
low as 34 degrees Celsius in the
camel. This is the advantage since the heat of 66. ______
t
[单项选择]注射用乳糖红霉素在葡萄糖输液中可加入哪种药物可提高其稳定性
A. 氯化钠注射液
B. 氯化钾注射液
C. 维生素C注射液
D. 维生素B6注射液
E. 以上都不加
[多选题]下列工作中，属于创造项目产品过程的有（ ）。
A.项目策划
B.项目设计
C.项目施工
D.项目控制
E.项目验收
[不定项选择题]共用题干
第一篇
New Attempts to Eradicate AIDS Virus
A high-profile attempt to eradicate the AIDS virus in a few patients continues to show promise.
But researchers won't know for a year or more whether it will work,scientist David Ho told journalists
here Wednesday for the Fourth Conference on Viruses and Infections.
"This is a study that's in progress,"says Ho,head of the Aaron Diamond AIDS Research Center,
New York.
The study involves 20 people who started combinations of anti-HIV drugs very early in the course of the
disease,within 90 days of their infections.They'ye been treated for up to 18 months.Four others have
dropped out because of side effects or problems complying with the exacting drug system.
The drugs have knocked the AIDS virus down to undetectable levels in the blood of all remaining
patients.And,in the latest development,scientists have now tested lymph nodes and semen from a few
patients and found no virus reproducing there,Ho says."Bear in mind that undetectable does not equal
absent,"Ho says.
Ho has calculated that the drugs should be able to wipe out remaining viruses一at least from known
reservoirs throughout the body—in two to three years.But the only way to prove eradication would be to stop
the drugs and see if the virus comes back.On Wednesday,Ho said he wouldn't ask any patient to consider
that step before 2(1/2)years of treatment.
And he emphasized that he is not urging widespread adoption of such early,aggressive treatment outside
of trials.No one knows the long-term risks.
But other scientists are looking at similar experiments.A federally funded study will put 300 patients on
triple-drug treatments and then see if some responding well after six months can continue to suppress the
virus on just one or two drugs,says researcher Douglas Richman of the University of California,San Diego.
Some patients in that study also may be offered the chance to stop therapy after 1 8 months or more,he says.
Other scientists are looking at experiments that are similar in that they are studying_______.
A.the ways the patients are treated
B.the size of the experiment
C.the cost of the experiment
D.the time the experiment takes
[单选题]401主题1
AmazonEC2实例仅在需要时运行,但必须在整个过程中保持活动状态。
什么是最合适的购买选择?
A.专用实例
B.Spot实例
C.按需实例
D.预留实例
[填空题]镦粗后拔长锻造比小者，切向力学性能会发生显著改善，若敦促后拔长锻造比（）时，将呈轴向纤维流向，镦粗对（）性能的影响已很小。
[单项选择]PET均匀性测试中使用的F-18水溶液灌注桶装模型，强度要求随机符合计数率与真符合计数率的比值为
A. 1/5
B. 1/10
C. 1/25
D. 1/50
E. 1/100
[判断题]篡改、伪造本人档案资料的,予以警告、记过或者记大过;情节严重的,予以降级或者撤职。( )
A.正确
B.错误
[判断题]近光灯采用DC24V 供电。
A.正确
B.错误
[单选题]《铁路旅客运输规程》（铁运〔1997〕101号）规定，持用（）的车票乘车时，除按无票处理外并交公安部门处理。
A.伪造或涂改
B.失效
C.减价不符
D.过期
[单选题]座舱释压到达安全高度,机长发布“到达安全高度”口令后,乘务员向客舱发布( )
A. 取下氧气面罩!Remove the mask!
B. 不要惊慌!
C. 解开安全带!
D. 系好安全带!
[判断题]接地用螺栓规格不应小于M8，并应有弹簧垫。接触面应平整。12
A.正确
B.错误
[单项选择]TEAM-BUILDING THROUGH ACTIVITIES
Nowadays, company bosses are increasingly trying to find unusual team-building events as part of their training programme. An activity park (29) Fast-track has just opened to offer (30) events. It specializes (31) events to attract the corporate entertainment market, (32) is growing all the time.
The park is situated just a few kilometres outside the city centre (33) it provides events that (34) entertain as well as train.
Clients can try outdoor attractions such as sailing or climbing, (35) availability clearly depends entirely (36) the weather. Activities of (37) kind are perfect team-building exercises.
"I’d (38) been to an activity park before," explained James Black, a company manager. "Before we came, I didn’t think we (39) enjoy ourselves so much and I didn’t expect the tinge difference that Fast-track’s programme has (40) to my team.
A. because
B. although
C. since
[判断题]在油气层(目的层)钻井作业过程中,泥浆工坐岗观察钻井液出口流量变化 钻井液循环罐液面变化及钻井液性能变化。
A.正确
B.错误
[多选题] 通常发电机并列可采用（ ）方式。
A.非同期并列；
B.自同期并列；
C.准同期并列；
D.以上都对。
[判断题]《动车组以外列车的机务行车安全措施》规定：在列车运行中，司机发现列车制动力失效或减弱危及行车安全时，应立即实施紧急制动停车。
A.正确
B.错误
[多选题]下列属于销售与收款循环中的业务活动的有 ( )
A.办理和记录现金、银行存款收入
B. 核算产品成本
C. 接受客户订单
D. 批准赊销信用
[单选题]5 月 8 日，记者从国新办举行的新闻发布会上获悉，国家网信办部署开展 2021 年“（ ）”系列专项行动。其中，“（ ）·整治网上文娱及热点排行乱象”专项行动，针对网上文化娱乐乱象问题
A.开朗
B.明朗
C.清朗
D.清明
[单项选择] 证券公司借人次级债务应当符合的条件有（）。 Ⅰ借入资金有合理用途 Ⅱ净资产与负债的比例不触及预警标准 Ⅲ长期次级债务计入净资本的数额不得超过净资本的25％ Ⅳ次级债务应当以现金或中国证监会认可的其他形式借入 Ⅴ募集说明书内容或次级债务合同条款符合证券公司监管规定
A. Ⅰ、Ⅲ
B. Ⅰ、Ⅱ、Ⅳ、Ⅴ
C. Ⅱ、Ⅲ、Ⅳ、Ⅴ
D. Ⅰ、Ⅲ、Ⅳ、Ⅴ
E. Ⅰ、Ⅱ、Ⅲ、Ⅴ
[单项选择]微量元素测定时，清洗玻璃器皿的方法正确的是（）
A. 流水冲洗后浸泡于重铬酸清洁液数小时，用自来水冲洗干净，再用蒸馏水冲洗2～3次
B. 用2%次氯酸溶液浸泡数小时，再用自来水冲洗干净即可
C. 单独清洗，用稀硝酸浸泡后，再用去离子水冲洗2～3次
D. 用肥皂水清洗后，再用自来水冲洗干净即可
E. 应流水冲洗后浸泡于2%盐酸数小时，再用自来水冲洗干净即可
[单选题]接车时，如列车未压上中间道岔区段停车，列车头部进入股道延时（ ）min后中间道岔解锁；否则，即使使用区段故障解锁按钮也不能使中间道岔解锁。
A.3
B.4
C.5
[简答题]列车是指编成的车列并挂有机车及（）。动车组列车为自走行固定编组列车。
[单选题]党的最高理想和最终目标是（ ）。
A.建设中国特色社会主义
B.全面建成小康社会
C.实现共产主义
D.实现中华民族伟大复兴
[单选题]公民、法人或者其他组织认为行政机关的（）侵犯其合法权益的，可以向人民法院提起行政诉讼。
A.具体行政行为
B.抽象行政行为
C.行政处分行为
D.民事侵权行为
[单选题]根据《建设工程安全生产管理条例》,建设工程实行施工总承包的,由( )对施工现场的安全生产负总责。
A.分包单位
B.建设单位
C.总承包单位
D.监理单位
[简答题]道口设备维修管理中，按定型标准安装和改造的道口自动信号、道口通知和预警设备由________________部门负责。
[判断题]晶体三极管有放大和截止两种工作状态。
A.正确
B.错误
[简答题]导游要根据什么的不同，选择不同的表达方式？
[多选题]防止事故发生的安全技术措施基本出发点是采取措施约束、限制能量或危险物资防止其意外释放。常用的措施有哪些（）？
A.消除危险源
B.限制能量或危险物资
C.隔离
D.故障-安全设计
E.减少故障和失误
[判断题]YN-S系统中，正常运行时PE中没有电流流过。( )
A.正确
B.错误
