热门试题:
[判断题]ZD(J)9系列电动转辙机的动作杆和表示杆(锁闭杆)外露部位不必涂油。（）
A.正确
B.错误
[单项选择]迟发性运动障碍的主要病因为（）
A. 长期刺激多巴胺受体，受体反应超敏
B. 长期阻断多巴胺受体，受体反应超敏
C. 长期刺激多巴胺受体，受体反应下降
D. 长期阻断多巴胺受体，受体反应下降
E. 长期刺激乙酰胆碱受体，受体反应超敏
[单选题]以暴力、威胁手段,实施下列行为,不构成强迫交易罪的是()。
A.强迫他人转让公司股份、债券的
B.强迫他人出卖毒品的
C.强迫他人参与或者退出投标、拍卖的
D.强迫他人参与或者退出特定的经营活动的
[单选题]心境是一种
A.正性情绪
B.负性情绪
C.情感
D.抑郁情绪
E.情绪状态
[多项选择]盘点作业的目的主要有（）。
A. 确认实际的库存量
B. 确认库存条件
C. 查清库房帐面损益
D. 发现库房管理中存在的问题
E. 查清储存质量
[多选题]二次系统上的工作即在（ ）、（ ）等设备上，进行巡视装拆、负荷测试、压降测试、校验、调试等工作。
A.保护装置
B.电能计量装置
C.采集终端
D.电压检测
[单选题]-B-001 5 2 3
冷塑性变形要产生加工( ),使金属的继续变形发生困难
A.强度
B.硬度
C.变形
D.硬化
[T/]
[多选题](五十六)女，47岁，近2个月月经量增多，妇检子宫2个月大小，继发性痛经，不规则。2、最易出血的子宫肌瘤是( )
A.浆膜下子宫肌瘤
B.多发性子宫肌瘤
C.肌壁间子宫肌瘤
D.黏膜下子宫肌瘤
[单选题]CRH5型动车组，当（ ）断开，车上无AC380V时，应急通风逆变器启动。
A.LCB
B.VCB
C.DJ1
D.DJ
[判断题]当发生不燃的有毒气体泄漏时,其现场警戒的目的是防止人员中毒。( )
A.正确
B.错误
[单选题]3.563. 第563题剩余电流动作保护器投入运行后，每( )需在通电状态下按动试验按钮，以检查剩余电流动作保护器动作是否可靠。
A.1年
B.半年
C.3个月
D.1个月
[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.
[单选题]消防( )网,又称灭火救援战斗网(易)(应急通信)
A.一级
B.二级
C.三级
D.四级
[多项选择]关于急性肾衰竭高钾血症的处理措施，叙述正确的有（ ）
A. 应用离子交换树脂
B. 静脉注射碳酸氢钠
C. 静脉注射葡萄糖酸钙
D. 静脉注射葡萄糖加胰岛素
E. 腹膜透析
[单项选择]超过（）天的未登折明细均压缩打印，所有收入类、支取类交易分别合并，打印汇总明细。
A. 65
B. 78
C. 86
D. 92
[单项选择]百货商场折价出售一商品，以八折出售的价格比原价少15元，问该商品的原价是多少元( )
A. 65
B. 70
C. 75
D. 80
[多选题] MT3600B矿用汽车柴油机型式是( )。
A.)四冲程废气涡轮二级增压
B.)中冷
C.)V型排列
D.)工型排列
[单项选择]In the last half of the nineteenth century "capital" and "labour" were enlarging and perfecting their rival organizations on modem lines. Many an old firm was replaced by a limited liability company with a bureaucracy of salaried managers. The change met the technical requirements of the new age by engaging a large professional element and prevented the decline in efficiency that so commonly spoiled the fortunes of family firms in the second and third generation after the energetic founders. It was moreover a step away from individual initiative, towards collectivism and municipal and state-owned business. The railway companies, though still private business managed for the benefit of shareholders, were very unlike old family business. At the same time the great municipalities went into business to supply lighting, trams and other services to the taxpayers.
The growth of the limited liability company and municipal business had important consequences. Such large, impersonal manipulat
A. family firm owners
B. landowners
C. managers
D. shareholders
[单项选择]在Excel5.0中，要计算工作表A1：A10指定区域数值的和应使用函数（）。
A. SUM（A1：A10）
B. AVG（A1：A10）
C. MIN（A1：A10）
D. COUNT（A1：A10）
[单选题]关于管间牙本质不正确的描述是
A.位于管周牙本质之间
B.大部分胶原纤维与牙本质小管平行排列
C.胶原纤维较管周牙本质多
D.矿化度比管周牙本质低
E.其胶原纤维呈网状交织排列
[单项选择]下列关于DHCP的配置的描述中，错误的是
A. DHCP服务器不需要配置固定的IP地址
B. 如果网络中有较多可用的IP地址并且很少对配置进行更改，则可适当增加地址租约期限长度
C. 释放地址租约的命令是“ipconfig/release”
D. 在管理界面中，作用域被激活后，DHCP才可以为客户机分配IP地址
[单项选择]男，30岁，从2米高处跌落，左腰部着地，伤后腰痛并有肉眼全程血尿，有小血块，查：BP110／70mmHg，P100次／分；左腰部青紫压痛，腹部无压痛反跳痛。
如一位肾挫裂伤患者伤后保守治疗10天，持续有血尿存在（肉眼血尿与镜下血尿交替出现），血压始终维持在110／75mmHg上下，心率波动在70～90次／分范围，腰部无隆起，有压痛叩痛，腹部未见阳性体征，抽血查血常规WBC8×109／L，Hb75g／L，肾功能正常，该患者适合采取哪种诊疗方法（）
A. 快速输血补液
B. 经第11肋间切口肾切除术
C. 经腹行肾切除术
D. 选择性肾动脉造影+栓塞术
E. 快速输血补液的同时手术探查
[判断题]按照《生产安全事故报告和调查处理条例》规定，对事故发生单位负有事故责任的有关人员，依法暂停或者撤销其与安全生产有关的执业资格、岗位证书。
A.正确
B.错误
[单选题]飞机下发的ADS-B报文为（）
A.CAT21
B.DF17
C.CAT32
D.DF11
[多选题]下列配电屏中是低压配电屏的有（ ）。
A.PGL型
B.GGD型
C. BFC型
D.KYN-10型
[单选题]严重危险级的A类火灾场所中,灭火器的单位灭火级别最大保护面积为()㎡/A
A.40
B.50
C.60
D.75
[单项选择]关于调味品不正确的表述是( )。
A. 味精pH＞7的时候失去鲜味
B. 健康人群每日摄入5g食盐即可完全满足机体对钠的需要
C. 为了保持风味，高级的食用醋最好在金属容器中保存
D. 在1%～2%的食盐溶液中添加10%的糖，几乎可以完全抵消成味
[单选题]旅客列车车次读法中“T”和“Y”分别读成（ ）。
A.剔和游
B.特和游
C.剔和临
D.特和临
[单选题] 2020 年 2 月 17 日起实施的《上海申通地铁集团有限公司运营事故调查处理管理规定》中规定， 司机" 操作不当或设备故障造成自动开车司机漏乘， 构成( )事故。
A.一般 E 类
B. 一般 B 类
C. 一般 C 类
D. 一般 D 类
[单项选择]天然气部分氧化工艺中导致气化炉炉膛温度升高的因素是（）。
A. 氧气/天然气比偏低
B. 氧气/天然气比偏高
C. 工艺原料气流量偏低
D. 烧嘴冷却水流量偏低
[单选题]支持电网企业构建开放共享的省级智慧能源服务平台，逐步接入各类能源数据，建立在线综合能效评价体系，与综合能源及电能服务机构、售电企业等积极合作，为各方提供运行分析、效益评估、信息互动等服务，推动综合能源服务项目落地，提升全社会综合能效。以下（）不属于需要接入的能源类型
A.A、电
B.水
C.气
D.油
[判断题]【判断】 《场(厂)内专用机动车辆安全技 术监察规程》中规定,场车应当设置能够发出清晰声 响的警示装置和后视镜。
A.正确
B.错误
[单选题]有爱就有恨，有喜就有悲，有紧张就有轻松，说明情绪和情感具有（）的特性。
A. 两极对立
B. 不可调和
C. 相互关联
D. 物极必反
[单选题]长管正压呼吸器使用时压力低于( )mpa时报警器报警。
A.5.5±0.5
B.6±0.1
C.7±0.2
D.8±0.5
[单项选择]关于FⅧC及FⅨ剂量叙述正确的是
A. 按每毫升新鲜血浆含FⅧ或FⅨ1ⅠU计算，每输入1ml／kg血浆，可提高患者FⅧ：C或FⅨ水平15％
B. 按每毫升新鲜血浆含FⅧ或FⅨ1ⅠU计算，每输入1ml／kg血浆，可提高患者FⅧ：C或FⅨ水平50％
C. 按每毫升新鲜血浆含FⅧ或FⅨ1ⅠU计算，每输入1ml／kg血浆，可提高患者FⅧ：C或FⅨ水平40％
D. 按每毫升新鲜血浆含FⅧ或FⅨ1ⅠU计算，每输入1ml／kg血浆，可提高患者FⅧ：C或FⅨ水平20％
