热门试题:
[单项选择]下列关于内部收益率的讨论中,正确的是( )。
A. 内部收益率是项目初期投资的收益率
B. 内部收益率的经济含义是投资方案已经回收资金的获利能力
C. 内部收益率的实质就是使投资方案在计算期内各年净现金流量的现值累计等于零时的折现率
D. 利用内插法计算常规投资方案的内部收益率的近似值总是小于内部收益率的实际值
[单项选择]虎口向内或向前握器械的方法称为()。
A. 正握
B. 反握
C. 正反握
[多选题](多选题)根据《中国南方电网有限责任公司电力事故事件调查规程》(2021版)规定,系统运行部门主要负责事故事件调查的如下工作( )。
A.配合本单位事故事件有关电网运行二次系统的资产管理、生产管理、技术监督、运行维护、检修试验、大修技改等原因分析
B.组织制定、审定和落实职责范围内的事故事件预防整改措施
C.负责统计事故事件电网负荷减供比例协助相关部门完成用户停电数量、比例统计及重要用户停电管理
D.在牵头部门协调下参与其他类型事故事件的内外部调查和处理
[单项选择]以下哪一项内容是残疾人就业服务机构应当免费为残疾人就业提供的服务?()
A. 发放就业政策汇编
B. 发放辅助用具
C. 发布残疾人就业信息
D. 发放失业保险金
[单选题]属于新药Ⅳ期临床试验要求的是
A.以患病者为受试对象,研究新药的人体耐受性和药动学
B.以健康受试者为受试对象进行随机盲法对照试验,找到最佳治疗方案
C.遵循随机对照原则进一步考察安全性和疗效
D.药品上市后的临床试验,包括不良反应监察、治疗药物监测、药物相互作用等
E.研究药物在正常人体的体内过程
[单选题]120型控制阀属于( )。
A.三压力机构控制阀
B.二压力机构间接作用方式控制阀
C.二压力机构直接作用方式控制阀
D.三通阀
[单项选择]营养状态评定中,有关体重指数的描述下列哪项不正确()。
A. 简称为BMI
B. 等于体重(kg)/身高2(m2)
C. 简称为IBW
D. 正常值为16~25
E. <18是营养不良的重要指标
[填空题]In February 2010, Yahoo got to watch with schadenfreude (幸灾乐祸) as Google drove its new Buzz social network straight over a cliff with inadequate privacy controls. Now Yahoo has decided it wants to head for pretty much the same cliff, just with a slightly firmer grip on the wheel.
Yahoo is enhancing its Yahoo Updates service, a relatively unknown social network that allows users to post status updates, photos, and other content by integrating it directly into Yahoo Mail. The numbers make a compelling case: Yahoo Mail has some 280 nil]lion users; so if it can flip a switch and create a social network around that--why, it’d be a sudden player against Facebook, a global force at nearly 500 million users, and Twitter, at 75 million.
No doubt that is the same thought that occurred to Google when it introduced Buzz as an add--on to its popular Gmail service. That launch didn’t go so well. Yahoo is paying close attention to the mistakes Google made, especially the flaw that allow
[单选题]I was most surprised to hear Susan's marriage.
A.very
B.really
C.more
D.least
[单项选择]The consequences of heavy drinking are well documented: failing health, broken marriages, regrettable late-night phone calls. But according to Gregory Luzaich’s calculations, there can be a downside to modest drinking, too—though one that damages the wallet, not the liver.
The Pek Wine Steward prevents wine from spoiling by injecting argon, an inert gas, into the bottle before sealing it airtight with silicon. Mr. Luzaich. a mechanical engineer in Windsor, Calif.—in the Sonoma County wine country—first tallied the costs of his reasonable consumption in October 2001. "I’d like to come home in the evening and have a glass of wine with dinner," he said. "My wife doesn’t drink very much. so the bottle wouldn’t get consumed. And maybe I would forget about it the next day, and I’d check back a day or two later, and the wine would be spoiled." That meant he was wasting most of a $15 to $20 bottle of wine. dozens of times a year.
A cheek of the wine-preservation gadgets on the market
A. A.2) probably means______. calculatedB. corresponded toC. listedD. gave
[单项选择]根据研究目的需要和研究者的主观判断选择研究对象是哪种抽样方法()。
A. 方便抽样
B. 立意抽样
C. 偶遇抽样
D. 雪球抽样
E. 定额抽样
[单项选择]慢性泪囊炎的主要症状是()
A. 疼痛可放射到颈部
B. 泪囊区红、肿、热、痛,结膜充血
C. 形成脓肿
D. 溢泪
E. 全身发热,耳前淋巴结肿大
[单项选择]越鞠丸的功用是()
A. 行气通阳
B. 行气消痞
C. 行气散结
D. 行气解郁
E. 行气止痛
[单项选择]三角襞的描述正确的是()。
A. 位于腭舌弓与腭咽弓相交处
B. 位于扁桃体上端
C. 由腭咽弓向下延伸包绕扁桃体前下部而形成
D. 由腭舌弓向下延伸包绕扁桃体前下部而形成
E. 由腭咽弓向上延伸包绕扁桃体前下部而形成
[判断题]某火力发电厂为燃煤二次中间再热超高压双抽冷凝机组,装有四台550MW机组,总装机容量为2200MW。某天前夜班,三值四号机组集控巡检员按照巡检要求,对汽机、锅炉、电气专业进行全面巡检,巡检至汽机高压加热器处,发现就地水位计下考克门有积水,经仔细查看,看到水位计考克门后有轻微冒汽,看到汽量在空气中飘,于是为了看清冒汽处是否存在砂眼,靠近用防爆电筒仔细观看,持续观察近30分钟。由于该处漏汽为焊接质量引起,长时间漏泄导致砂眼突然扩大,幸亏该巡检员因近视戴眼镜,仅造成脸部轻微烫伤,未影响任何人身安全。请根据安规进行判断,巡检员在巡检过程中的行为是否正确。
A.正确
B.错误
[多选题]运营公司专业应急抢险队伍按专业设置有( )等。
A.车辆
B.AFC
C.机电
D.后勤
[判断题]电流互感器本体热点温度超过55℃,应加强监视,按缺陷处理流程上报。
A.正确
B.错误
[单选题]在关于投标的禁止性规定中,招标人明示或者暗示投标人为特定投标人中标提供方便属于( )。
A.投标人相互串通投标
B.招标人与投标人串通投标
C.投标人以行贿手段谋取中标
D.投标人以非法手段骗取中标
[填空题]多普勒天气雷达是利用多普勒效应来测量()。
[单项选择]根据综合管理体系的规定平台火灾/爆炸警报信号是()。
A. 间歇铃音,连响1分钟,同时广播
B. 间歇铃音,连响2分钟,同时广播
C. 间歇铃音,连响3分钟,同时广播
D. 间歇铃音,连响4分钟,同时广播
[判断题]C64型敞车段修周期为1.5年。
A.正确
B.错误
[单选题]一台三相变压器,SN=200kVA,Yy连接,U1N/U2N=10/0.4kV,该变压器一、二次额定电流分别为(____)A。
A.11.5、288.7
B.13.5、388.7
C.15.5、398.7
D.19.9、500
[多选题] 根据《安全生产法》(2021年修订)的规定,生产经营单位应当告知从业人员的事项包括( )。
A.作业场所和工作岗位危险因素
B.生产经营计划
C.事故应急措施
D.安全防范措施
E.环境保护政策
[单选题]在规划的前期阶段,( )是编制规划的依据。
A.经济政策
B.科学规划
C.经济信息
D.经济预测
[单选题]审计的最本质特征是( )。
A.公正性
B.独立性
C.权威性
D.真实性
[单项选择]
The horse came into existence before man on earth. Although the earliest remains of primitive horses have been found on the North American continent, many scientists believe this small species traveled over a land mass. It became extinct (绝种的) in America. Other scientists believe that the horse may have originated in Asia. In any event the animal soon spread into China, Europe, and the Middle East. The first modem horse to be introduced into the American continent came with the early Spanish explorers. Horses were bred into many types. The heavy horses developed in the low countries of Europe and were used for work and by the medieval knights (中世纪骑士) to fide. The oldest breed of horses is said to be the Arabian. The only true wild horses left in 20th century are found in Mongolia. Horses are said to rate in intelligence after the ape, the elephant, the dog. They have excellent memories and can sometimes find their way home when lost, and sense danger better than their masters. Th
A. For food.
B. For power.
C. To make money.
D. To work for him.
[单选题]关闭WIFI的自动连接功能可以防范 。
A.所有恶意攻击
B.假冒热点攻击
C.恶意代码
D.拒绝服务攻击
[单选题]铬黑T批示剂在不同的pH值中显示不同颜色,当pH在10时显示的颜色是( )。
A.酒红色
B.兰色
C.紫红色
D.橙红色
[多选题]在使用电动工具的工作中,( )应立即切断电源。
A.A-因故离开工作场所
B.B-暂时停止工作
C.C-遇到临时停电时
D.D-换人工作时
[单选题]下列税收管辖权类型中,为发展中国家所侧重的是( )。
A.居民管辖权
B.公民管辖权
C.地域管辖权
D.国际管辖权
[单项选择]Crohn病患者排便次数过多时应选用()
A. 阿托品
B. 糖皮质激素
C. 易蒙停
D. 柳氮磺吡啶栓
E. 强痛定
[填空题] ( )的脱轨器及引向安全线或避难线的道岔,应装设脱轨表示器。
[单选题]以下关于防止物体打击说法错误的是( )。
A.进入作业区必须按规定使用好安全帽等劳动保护用品
B.高处和双层作业时,不得向下抛掷料具;无隔离设施时,严禁双层同时垂直作业
C.列车通过时,必须面向列车避车,防止落物击伤
D.搬运重、大、长物时,必须动作协调
[单项选择]喉返神经损伤的体征是()。
A. 单侧声带固定于旁正中位
B. 声门闭合不全,可见梭形裂隙
C. 双声带前中1/3交界处光滑、微小隆起,声带运动正常
D. 喉黏膜弥漫性充血,声带尤甚并肿胀,运动正常
E. 声带黏膜白色点状锥性突起,拭之易脱落
[判断题]齐步换踏步,听到口令,即换踏步。( )
A.正确
B.错误