热门试题:
[单项选择]肾精不足证不会出现
A. 齿摇发落
B. 腰膝酸软
C. 健忘恍惚
D. 耳鸣耳聋
E. 阳强易举
[单项选择]
Los Angeles has planted 2,000 rubber trees down the middle of one of its main streets. These trees do not (21) rubber. They are, (22) , made of rubber. Mr. Joe Dynamo, a spokesman for Los Angeles (23) council, explained the reasons. He said:
"These (24) are representative of our virtual society. We have polystyrene grass on our golf (25) . We have non-milk powder (26) our coffee. We (27) copies in plastic of old wooden furniture. We have fiberglass tombstones. (28) shouldn’t we have trees made of rubber"
"At 50 miles an hour, (29) motorist will see any difference. And our preservation (30) will be lower. You give the trees an annual rinse (清洗) with detergent, and (31) them off twice a year. We (32) a lot of money because transplanting, pruning, weeding and leaf-collection are all (33) . And we have a 60-year (34) guarantee
A. essential
B. accidental
C. unnecessary
D. necessary
[多选题](465995)碘量法中为防止I2 的挥发,应( )。 (1.0分)
A.加入过量KI
B.滴定时勿剧烈摇动
C.降低溶液酸度
D.使用碘量瓶
[单选题]_( )_____年,中央人民政府同西藏地方政府达成《关于和平解放西藏办法的协议》,西藏获得到和平解放。
A.1949
B.1950
C.1951
D.1952
[单项选择]What’s wrong with the carpet in the living room
[单选题]继电保护组屏设计应充分考虑运行和检修时的安全性,确保能够采取有效的防继电保护“三误”措施指( )。
A.误整定、误试验、误碰
B.误整定、误接线、误试验
C.误碰、误接线、误整定
D.误碰、误试验、误接线
[单项选择]民用爆破器材的具体流通费用标准或零售价格由( )制定。
A. 县级价格主管部门
B. 省级价格主管部门
C. 国务院价格司
D. 国家发改委
[多项选择]无领导小组讨论的特点包括()
A. 具有生动的人际互动效应
B. 组织的成本较大,效率较低
C. 讨论过程真实,易于客观评价
D. 被评价者难以掩饰自己特点
E. 无法在被评价者之间产生互动
[简答题]双侧进油的离心式主油泵主要由哪些部分组成?
[判断题]无时限电流速断保护的作用是保证在任何情况下仅快速切除本线路上的故障。
A.正确
B.错误
[单选题]是一种褐红色气体。
A.二氧化碳
B.硫化氢
C.二氧化氮
D.二氧化硫
[判断题]追诉期限从犯罪之日起计算;犯罪行为有连续或者继续状态的,从犯罪行为终了之日
起计算。
A.正确
B.错误
[多选题]绩效考核评价等级共有()
A.A等级(优秀)
B.B等级(良好)
C.C等级(合格)
D.D等级(不合格)
[单项选择]下列属于过失犯罪的是()。
A. 贪污贿赂罪
B. 刑事不移交罪
C. 玩忽职守罪
D. 妨碍公务罪
[单项选择]对年应纳税所得额在3~10万元的企业,企业所得税暂按( )的税率征收。
A. 5.5%
B. 18%
C. 27%
D. 33%
[单项选择]对吡喹酮叙述不正确的是()
A. 口服后易由肠道吸收
B. 口服后1~3小时血浆中浓度达峰值
C. 具有两个手性中心
D. 体内分布在肝中的浓度最高
E. 目前临床使用的为其左旋体化合物
[单项选择]ADSL技术主要解决的问题是
A. 宽带传输
B. 宽带接入
C. 宽带交换
D. 多媒体综合网络
[单项选择]治疗小儿原发性肾病综合征的首选药物是()
A. 速尿(呋塞米)
B. 低分子右旋糖酐
C. 白蛋白
D. 肾上腺皮质激素
E. 细胞毒药物
[单选题]带电作业所使用绝缘承力工具、绝缘绳索的最小有效绝缘长度为:220kV( )m,330kV( )m。
A.1.8;3.7
B.1.0;2.8
C.1.0;3.7
D.1.8;2.8
[多选题]河床断面测量每( )测量一次(对季节性河流上的桥梁,洪水冲刷河床断面发生变化时,汛后测量( ))。
A.一年
B.两年
C.一次
D.两次
[单项选择]抗休克首要且基本的措施为()。
A. 改善周围血管张力
B. 改善心功能
C. 补充血容量
D. 纠正酸中毒
E. 防止急性肾衰竭
[单项选择]关于检查表,以下说法正确的是()。
A. 它是审核员对审核活动进行具体策划的结果
B. 它应提前交给受审核部门的人员认可
C. 它必须经过管理者代表批准
D. 它有标准规定的统一格式
[单项选择]将图像分割成小单元的处理是
A. 采样
B. A/D转换
C. D/A转换
D. 量化
E. 过滤
[单选题]脱硫系统中,石灰石粉仓内的容量应至少能存放锅炉 BMCR 工况下()天的石灰石粉用量。
A.1
B.3
C.5
D.7
[单选题]女性,47岁,胆囊结石病史4年,曾先后发作性胆绞痛4次,BUS显示胆囊内充满型结石。首选的治疗方法是下列哪一种
A.口服排石饮液
B.口服熊去氧胆酸片
C.口服利胆素片
D.胆囊切除术
E.经皮胆镜取石术
[多项选择]实行最严格的生态环境保护制度,形成绿色发展方式和生活方式,坚定走()的文明发展道路,建设美丽中国。
A. 生产发展
B. 生机勃勃
C. 生活富裕
D. 生态良好
[判断题]执勤班组内应合理安排床位,明确出动路线,楼梯过道应保持畅通、清洁干燥,滑杆入口应设置围栏或防护门,底部应设置缓冲垫。()
A.正确
B.错误
[单项选择]工资率下降的收入效应导致闲暇消费( ),其替代效应则导致闲暇消费( )。
A. 减少,减少
B. 减少,增加
C. 增加,减少
D. 增加,增加
[判断题]车辆驱动桥的速比越大,代表车辆速度会越快。
A.正确
B.错误
[多选题]任何单位或者个人发现损坏或者非法占用( )以及其他影响铁路安全的行为,有权报告铁路运输企业,或者向铁路监管部门、公安机关或者其他有关部门举报。
A.铁路设施设备
B.铁路标志
C.铁路用地
D.铁路安保区
[单项选择]Questions l to 5 are based on an interview. At the end of the interview you will be given 10 seconds to answer each of the following five questions.
Now listen to the news.What did Mrs. Bruce think of the suffragettes’ efforts
A. They were useless.
B. They were ridiculous.
C. They were good in a lot of ways.
D. They were somewhat limite
[不定项选择题]共用题干
第三篇
Walking to Exercise the Brain
Do you think sitting and studying all the time will improve your grades?Think again?Getting some exer-
cise may help,too.
New research with old people suggests that taking regular walks helps them pay attention better than if
they didn't exercise.
Previous research had shown that mice learn,remember,and pay attention better after a few weeks of
working out on a running wheel.Mice that exercise have greater bl0od flow to the brain than those who don't.
Their brain cells also make more connections.
Neuroscientists(神经科学家)from the University of Illinois at Urbana-Champaign wanted to find out if
the same thing is true for people.First,they measured the physical fitness of 41 adults,ages 58 to 77,after
each person walked 1 mile.Then,participants looked at arrows on a computer screen and had to use computer
keys to show which way one particular arrow was pointing.
Adults who were physically fit were faster at the arrow task,and their answers were just as accurate as
their less-it peers,the researchers found.The fitter participants also had more blood flow to a part of their
brain responsible for paying attention and making decisions.
In a second study , 15 elderly people who completed a 6-month aerobic-training(有氧运动)course were
faster at attention tasks compared with 14 seniors who just did stretching and toning exercises(韵律操)for
the same amount of time.
So,even going for a walk every 2 or 3 days for just 10 to 45 minutes can help.That should be good news
for the elderly.
The effects of exercising on the brains of younger people haven't been studied yet.Still,it can't hurt to
take occasional breaks and' go for a walk or run around with friends.Whatever you do,though,don't try to
read and walk at the same time.You could end up hurting yourself!
Walking regularly helps elderly people___________.
A.lose weight
B.become happier
C.concentrate better
D.look younger