热门试题:
[多选题]农事诗主要是指《诗经》中描述农业生产生活的以及与农事直接相关的政治、宗教活动的诗歌。下列《诗经》中的相关“农事”，表述正确的是：( )
A.“七月流火，九月授衣”指大火星西行，天气变得炎热
B.“彼黍离离，彼稷之苗”中的“黍”是一种农作物，即糜子
C.“畟畟良耜，俶载南亩”中的“耜”是一种农具，用以翻土
D.“亦服尔耕，十千维耦”中的“耦”是两人并耕的一种耕作方式
[单选题]关于排尿反射的叙述，下列哪一项不正确？（ ）
A.感受器位于膀胱壁上
B.初级中枢位于骶段脊髓
C.反射过程存在负反馈控制
D.排尿反射受意识控制
[单选题]客流综合调查每（ ）进行一次。
A.季度
B.半年
C.年
D.两年
[单项选择]颈内动脉系统短暂性脑缺血发作的症状不可能有
A. 阵发性眩晕
B. 复视
C. 交叉性瘫痪
D. 吞咽困难
E. 感觉性失语
[判断题]有功电度表有单相接线法和三相接线法
A.正确
B.错误
[填空题]Primer on Smell
In addition to bringing out1 the flavor of food, what does the sense of smell do for us ?
Smell “gives us information about place, about where we are,” says Randall Reed, a Johns Hopkins University professor whose specialty is the sense of smell. ___1___ “Whether we realize it or not, we collect a lot of information about who is around us based on smell,” says Reed.
Even at a distance, odors can warn us of2 trouble — spoiled food, leaking gas, or fire. “It’s a great alert,” offers Donald Leopold, a doctor at Johns Hopkins. For example, if something in the oven is burning, everyone in the house knows it.
With just a simple scent, smell can also evoke very intense emotion. Let’s say, for example, that the smell is purple petunias. ___2___ Now let’s imagine that your mother died when you were three, and she used to have a flower garden. You wouldn’t need to identify the smell or to have conscious memories of your mother or her garden. You would feel sad as soon as you smelled that spicy odor.
Compared with3 animals, how well do people detect smelts ?
That depends on what you mean by “how well”. We are low on receptor cells ： current estimates say that humans have roughly five million smell-receptor cells, about as many as a mouse. ___3___
Reed says that, across species, there is a relatively good correlation between the number of receptor cells and how strong the sense of smell is. “You can hardly find the olfactory bulb in a human brain —— it’s a pea-sized object. In a mouse, it’s a little bigger. It’s bean-sized in a rat, about the size of your little finger in a rabbit, and the size of your thumb in a bloodhound.”
Does that mean that our sense of smell is not very acute ?
Not exactly. While we may not have the olfactory range of other creatures, the receptors we do have are as sensitive as those of any animal. ___4___ A trained “nose”, such as that of a professional in the perfume business, can name and distinguish about 10,000 odors. Reed says that a perfume expert can sniff a modem scent that has a hundred different odorants in it, go into the lab, and list the ingredients. “In a modest amount of time, he comes back with what to you or me would smell like a perfect imitation of that perfume. It’s amazing.”
What happens to4 our sense of smell as we age ?
Many people continue to have good olfactory function as they get older. ___5___ Leopold says that smell is generally highest in childhood, stays the same from the teens through the 50s, and drops starting at about 60 for women and 65 for men. “The average 80-year-old is only able to smell things half as well as the average 20-year-old,” says Leopold.
词汇：
scent /sent/ n. 气味，香味
petunia /p 'tju:ni / n. 喇叭花
olfactory / l'f kt( )ri/ adj. 嗔觉的，味道的
sniff /snif/ v. 嗅，闻，用力吸
注释：
1. bring out：使……显出，使……变得明显
2. warn of：发出关于……的警告。warn sb. of sth.：警告某人某事
3. compare with：与……相比
4. happen to：发生于，发生在
练习：
A These flowers have a rich spiciness that no other petunia has.
B Odors, or smells, can warn us about trouble.
C That’s not the rule, however.
D And smell tells us about people.
E We can also think, and we make conscious (and successful) efforts to tell the difference between one smell and another.
F A rat has some 10 million, a rabbit 20 million, and a bloodhound 100 million.
[单项选择]下列叙述错误的是（）
A. 生物药剂学研究的是剂型因素，生物因素与药效之间的关系
B. 药物的化学结构不是决定药效的唯一因素
C. 生物药剂学的研究为新药开发和临床用药提供评价依据
D. 药效指药物的临床疗效，不包括不良反应
E. 生物药剂学的研究对控制药物制剂内在质量很有意义
[单选题]经核准的铁路（ ），应当批给军运号码，符合后付运费规定范围的批给付费号码。
A.军事运输后付
B.军事运输计划
C.军事运输任务
D.军事运输货物
[单选题]以下哪一项不是软件危机的表现形式( )
A.成本高
B.生产率低
C.技术发展快
D.质量得不到保证
[判断题]质量管理六大关键点之二：建设示范站点的主要活动包括制定培训方案和培训实施和考核记录。
A.正确
B.错误
[填空题]可编程序控制器在每个任务执行的过程中，（）对中断是不响应的。
[单项选择]Feld, the shoemaker, was annoyed that his helper, Sobel, was so insensitive to his reverie that he wouldn’t for a minute cease his fanatic pounding at the other bench. He gave him a look, but Sobel’s bald head was bent over the last as he worked, and he didn’t notice. The shoemaker shrugged and continued to peer through the partly frosted window at, the near-sighted haze of falling February snow. Neither the shifting white blur outside, nor the sudden deep remembrance of the snowy Polish village where he had wasted his youth could turn his thoughts from Max, the college boy (a constant visitor in the mind since early that morning when Feld saw him trudging through the snowdrifts on his way to school), whom he so much respected because of the sacrifices he had made throughout the years in winter or direst heat—to further his education.
An old wish returned to haunt the shoemaker: that he had had a son instead of a daughter, but this blew away in the snow for Feld, if anything, was
A. thought about.
B. talked about.
C. worried about.
D. troubled about.
[简答题]简述科学发展观对于当前我国社会主义现代化建设的指导意义。
[判断题]搅拌电流太低，可 能反应发生器泄露乙炔气（ ）
A.正确
B.错误
[判断题]光接收机的光电转换功能主要是依靠半导体发光二极管来完成的。
[单选题]ARP协议实现的功能是： ()
A. 域名地址到IP地址的解析
B. IP地址到域名地址的解析
C. IP地址到物理地址的解析
D. 物理地址到IP地址的解析
[填空题]根据《建筑设计防火规范》（GBJ16-87），工厂、仓库应设置消防车道。一座甲、乙、丙22类厂房的占地面积超过3000m或一座乙、丙类库房的占地面积超过1500m时，宜设置（）消防车道，如有困难，可沿其两个长边设置消防车道或设置可供消防车通行的且宽度不小于（）的平坦空地。
[单项选择]有凉血不留瘀，活血不动血特性的是（）
A. 牡丹皮
B. 赤芍
C. 玄参
D. 紫草
E. 生地黄
[单选题]下列法律规范中对施工项目招标程序规定不一致的，应当适用（）的规定。
A.《合同法》
B.《招标投标法》
C.《招标投标法实施条例》
D.工程建设项目 施工招标投标办法》
[单项选择]医学伦理学原则中的最高层次是（）。
A. 不伤害病人
B. 有利于病人
C. 尊重病人的自主权利
D. 公正地对待病人
E. 全心全意为人民身心健康服务
[判断题]柴油发电机组应与市电连锁，可以与其并列运行。当市电恢复时，机组应自动退出工作，并延时停机。
A.正确
B.错误
[判断题] 银行业金融机构现金清分中心解缴到人民银行的假币需要将伪造币和变造币分开封装。（ ）
A.正确
B.错误
[单项选择]关于肺炎克雷伯菌，下列叙述正确的是（）。
A. 革兰阳性杆菌
B. 广泛存在于人体皮肤与外界相通的腔道中
C. 是ICU常见的条件致病菌
D. 极易在病人的泌尿道定植
E. 医护人员的手一般不是传播途径
[判断题]根据《固定资产贷款管理暂行办法》规定，贷款人应和借款人及其他相关当事人签订书面借款合同及其他相关协议，需担保的应贷后签订担保合同。
A.正确
B.错误
[判断题]等电位作业人员在作业中严禁用酒精、汽油等易燃品擦拭带电体及绝缘部分，防止起火。
[判断题]特种设备使用单位可以根据本单位在用特种设备数量的多少配备特种设备安全管理员,对数量较少的情况,可以不配备特种设备安全管理员。( )
A.正确
B.错误
[判断题]共用游车时，两货物突出端间距不小于500mm。
A.正确
B.错误
[单项选择]初孕妇，25岁，足月妊娠，一小时前腹部受外伤，自觉腹痛，阴道少量流血，腹部检查：子宫略大于妊娠周数，腹部有明显压痛，子宫硬如板状，宫缩间歇期不能松弛，胎心132次／分。此时可能的诊断为（）。
A. 胎盘早剥
B. 完全性子宫破裂
C. 妊娠合并宫颈病变
D. 前置胎盘
E. 先兆临产
[多选题]构建市场导向的绿色技术创新体系,发展绿色金融,壮大____.____.____。( )
A.节能环保产业
B.清洁生产产业
C.绿色科技产业
D.清洁能源产业
[判断题]记录仪进入工程师界面前可以不拔掉音频输入信号线。 ( )
A.正确
B.错误
[多选题]项目成本计划的编制方法包括（ ）。
A.目标利润法
B.技术进步法
C.差额计算法
D.按实计算法
E.定率估算法
[单选题]【单选题】
当两台BGP邻居所支持的Hold Time时间不一致时,邻居会协商采用两端能够支持的最低的Hold Time时间间隔。
A.正确
B.错误
[单选题]列车服务质量规范中规定，行李货仓内有（）标志、站名牌和隔离红带。
A.A、闲人免进
B.B、旅客止步
C.C、严禁烟火
D.D、禁止吸烟
[多选题]城市消防通信指挥中心系统功能有( )
A.利用系统资源,对消防地理.气象.消防水源.消防实力.消防安全重点单位基本情况.各类火灾和灾害事故特性.危险化学品.灭火救援战术技术等信息进行采集.存储.检索.处理.显示.传输和分析
B.自动或人工实现火警辨识.出动方案编制.出动命令下达等火警受理流程;
C.利用有线或无线通信网,进行语音通信,数据通信和图像通信
D.在火场及灾害事故现场进行全市消防实力调度
E.利用系统资源进行灭火救援指挥训练模拟
