热门试题:
[单项选择]The heart bypass (心脏搭桥术)has become part of our cultural life. It has come to seem like a ceremony of passage for the successful male, a red symbol of courage in midlife. Six hundred thousand bypass operations are performed a year in the United States. After a bypass, most heart patients experience significant relief from the peculiar discomfort in the chest caused by insufficient blood to the heart muscle. In some cases the surgery can dramatically extend life. American heart patients, who now number about 12 million, are enthusiastic about the surgery. Bypass is one of the most common major operations in America.
In private, however, many of my fellow workers in medicine suspect that bypass has become too popular. A recent Harvard study showed that as many as two-thirds of patients referred for bypass don’t need it or could have it postponed. In Canada and Britain, where physicians perform bypass surgery much less frequently than they do in America,heart patients fare just as wel
A. the popularity of bypass operation has its profound financial reasons
B. doing bypass operation makes a doctor famous
C. we shouldn’t have blind faith in anything even if it is good
D. receiving a bypass operation makes a person satisfied
[单选题](单选题)带电作业工具应定期进行机械试验,其试验周期为:( )
A.绝缘工具每年一次,金属工具一年一次。
B.绝缘工具每年两次,金属工具两年一次。
C.绝缘工具每年一次,金属工具两年一次。
D.绝缘工具每两年一次,金属工具两年一次。
[单项选择]迫降前调整乘客座位的原则是（）。
A. 援助者安排在出口处
B. 特殊乘客安排在应急出口的第二排中间
C. 同一排不能安排2名特殊乘客
D. 以上都正确
[单选题]变频器一上电就过电流故障报警并跳闸。此故障原因不可能是( )。
A.变频器主电路有短路故障
B.电机有短路故障
C.安装时有短路问题
D.电机参数设置问题
[单选题]阀芯是调节阀的关键部件形式多种多样,但一般分为两大类,即直行程阀芯和（ ）。
A.平板刑阀芯
B.球形阀芯
C.角行程阀芯
[单选题]曲线某点的拨量为6 mm，其前后两点正矢的影响量为( )。
A.前后两点和为6 mm
B.前后两点各为一6 mm
C.前后两点和为3 mm
D.前后两点各为一3 mm
[单选题]有砟轨道的路肩宽度（《技规（普速）》规定:线路设计速度为160km/h及以下的铁路，位于路堤上的路肩宽度不应小于0.8m，
A.1.1m
B.0.5m
C.0.6m
D.0.8m
[填空题]As war spreads to many corners of the globe, children sadly have been drawn into the center of conflicts. In Afghanistan, Bosnia, and Colombia, however, groups of children have been taking part in peace education (1) . The children, after learning to resolve conflicts, took on the (2) of peacemakers. The Children’s Movement for Peace in Colombia was even nominated (提名) for the Nobel Peace Prize in 1998. Groups of children (3) as peacemakers studied human rights and poverty issues in Colombia, eventually forming a group with five other schools in Bogota known as The Schools of Peace.
The classroom (4) opportunities for children to replace angry, violent behaviors with (5) , peaceful ones. It is in the classroom that caring and respect for each person empowers children to take a step (6) toward becoming peacemakers. Fortunately, educators have access to many online resources that are (7) useful whe
[多选题]在站内或()停车待备时,必须采取( )。发动机熄火等待时,要同时上好手制动或在车列两端设置铁鞋,司机( )。
A. 专用线
B. 保压制动
C. 合理制动
D. 不允许离车
[单项选择]按编码就是对量化的每个值点的数值进行（）的过程。
A. 数值压缩
B. 取样
C. 二进制编码
D. 十六进制编码
[多项选择]除肝细胞肝癌外，可以引起甲胎蛋白升高的情况还有（）
A. 妊娠
B. 活动性肝病
C. 肝囊肿
D. 肝血管瘤
E. 生殖腺胚胎源性肿瘤
[判断题]三脚扒杆偏吊法是将手拉葫芦斜挂在三脚扒杆上,偏吊一次,移动一次
三脚扒杆,把构件逐步移出后搁在滚移设备上,便可将构件拖移至安装处。()
A.正确
B.错误
[单选题]使用圆盘锯时,被锯木料厚度,以锯片能露出木料10~20 mm为限,长度应不小于( )mm.
A.200
B.300
C.400
D.500
[单选题]在操作隔离开关时,发生带负荷误合隔离开关时,已经发生弧光即应( )。
A.宁错不返,一合到底
B.立刻返回,快速灭弧
C.迅速停止,保持
原状
[单选题]在电路中,将两个及以上的电阻按头尾相接的顺序联接起来,称为电阻的( )。( )
A.串联
B.混联
C.并联
[简答题]It had been so frustrating that I had come close to telling her several times during the weekend that maybe we had just grown too far apart to continue our friendship , but I didn’t. (Passage Four)
[填空题]Business and government leaders also consider the inflation rate to be an important general indicator. Inflation is a period of increased (51) that causes rapid rises in prices. (52) your money buys fewer goods so that you get (53) for the same amount of money as before, inflation is the problem. There is a general rise (54) the price of goods and services. Your money buys less. Sometimes people describe inflation as a (55) when "a dollar is not worth a dollar any- more".
Inflation is a problem for all consumers. People who live on a fixed income are hurt the (56) . Retired people, for instance, cannot (57) on an increase in income as prices rise. Elderly people who do not work face serious problems in stretching their incomes to (58) their needs in time of inflation. Retirement income (59) any fixed income usually does not rise as fast as prices. Many retired people must cut their spending to (60) up with risin
[单项选择]
{{B}}In Sections A, B and C you will hear everything ONCE ONLY. Listen
carefully and then answer the questions that follow. Mark the correct answer to
each question on your ANSWER SHEET.{{/B}}
{{B}}SECTION A
CONVERSATIONS{{/B}}
{{B}}In this section, you will hear several conversations.
Listen to the conversations carefully and then answer the questions that
follow.{{/B}}
| {{B}} Questions 1 to 3 are based on the
following conversation. At the end of the conversation, you will be given 15
seconds to answer the questions. Now, listen to the
conversation.{{/B}} |
What does Sam mainly talk about
A. His job as a police officer.
B. His personal life.
C. How stressful patrol work is.
D. How police officers are taught to deal with stress.
[单项选择]下列说法中正确的是
A. 死锁是操作系统中的问题，数据库系统中不存在
B. 只有在执行并发操作时才有可能出现死锁
C. 在数据库操作中防止死锁的方法是禁止两个用户同时操作数据库
D. 当多个用户竞争访问相同的资源时不会发生死锁
[多项选择]关于可转换公司债券的转股期或行权期，下列说法正确的是（）。
A. 上市公司发行的可转换公司债券在发行结束6个月后，方可转换为公司股票
B. 发行人应明确约定可转换公司债券转股的具体方式及程序
C. 可转换公司债券的具体转股期限应由发行人根据可转换公司债券的存续期及公司财务情况确定
D. 对于分离交易的可转换公司债券，认股权证自发行结束至少已满6个月起方可行权
[单选题]配网断路器跳闸，变电运维人员、配电运维人员发现后或到达现场后应立即向配网调控值班员作简要汇报，再重点检查并汇报断路器油位与（）。
A.A．油温
B.B．油质
C.C．油色
D.D．油重
[多项选择]遵守公安决策程序的意义在于（）
A. 防止主观随意性、片面性和盲目性
B. 适应千差万别、千变万化的决策内容
C. 制约不正之风
D. 发挥集体智慧
E. 提高执行者贯彻执行方案的积极性
[单选题]下列工程中，必须实行工程监理的是()
A.1万平方米的住宅小区项目
B.总投资额为1000万元人民币的市政工程项目
C.1万平方米的学校工程项目
D.总投资额为2000万元人民币的电力工程项目
[判断题]从人类社会发展的趋势看,阶级和国家等社会现象最终将走向消亡。( )
A.正确
B.错误
[单项选择]已知概算指标中的直接费单价为350元/平方米，每平方米建筑面积所分摊的毛石基础为0.8立方米，毛石基础单价为70元/立方米，现准备建造一个类似的建筑物，采用钢筋混凝土带形基础，若每平方米建筑面积所分摊的钢筋混凝土带形基础为0.7立方米，钢筋混凝土带形基础单价为120元/立方米，则该拟建新建筑物的修正概算指标为( )元/立方米。
A. 322
B. 378
C. 350
D. 400
[单项选择]男，32岁。突然呼吸困难，右侧胸痛，查体：发绀，大汗。既往肺结核病史。男，32岁。突然呼吸困难，右侧胸痛，查体：发绀，大汗。既往肺结核病史，对该患者胸部听诊时可听到（）
A. 干啰音
B. 金属调叩击音
C. 胸语音
D. 羊鸣音
E. 爆裂音
[判断题]“绿色就是生命”,这是对绿化植物作用的高度概括,说明了绿色植物对人类生存的重要性。
A.正确
B.错误
[单选题] [单选]()燃烧的火灾不能用水扑救。
A.木制品
B.塑料品
C.玻璃钢制品
D.电气装置
[单选题]A-C-D-004 4 2 3
平板橡胶支座应重点检查有无( )等情况,限位装置是否可靠。
A.裂纹、不均匀外臌、钢板外露
B.剪切变形超限
C.位置串动
D.以上都是
[单选题]产褥期锻炼从分娩第二天即可开始，每天做( )次，以后逐渐增加运动次数及运动量。
A.5～8
B.5～9
C.5～10
D.5～12
[单项选择]在细胞浆和线粒体进行（）
A. 蛋白质合成
B. 核酸合成
C. 尿素合成
D. 糖酵解
E. 脂肪酸β-氧化
[单选题]在户外变电站和高压室内搬动梯子、管子等长物，应（ ）搬运，并与带电部分保持足够的安全距离。
A.两人直立
B.两人
C.一人
D.两人放倒
[单选题]粉末镜检可见晶鞘纤维的生药是
A.黄柏
B.当归
C.肉桂
D.丁香
[单选题]下列采用了单磁头读写方式的存储方式是( )
A.DC6000
B.DLT
C.4mm磁带
D.1/2英寸开盘带
[单项选择]与溶液的渗透压相关的因素为溶质的（）
A. 分子量
B. 重量
C. 分子数
D. 分子形状
E. 原子价
[单项选择]发热恶风，有汗出，舌淡红，脉浮缓，此证属于（）
A. 表热证
B. 表实证
C. 表虚证
D. 里实证
E. 里虚证
[单选题]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
[单项选择]在喉支架中软骨个数为（）
A. 3块
B. 6块
C. 9块
D. 10块
E. 2块
[多选题]8、张某不服县公安局的处罚决定，向市公安局提起行政复议申请，在复议决定作出前，张某想要撤回申请，则以下说法错误的有
A.直接可以撤回
B.须经说明理由才可以撤回
C.可以撤回，但仍需支付复议费用
D.一旦提出申请，就不能撤回
