热门试题:
[多选题]根据调控人员的预令或操作预告等明确( )。
A.操作任务
B.停电范围
C.检修人员
[单选题]按中国新九分法烧伤面积计算,面部占全身面积的
A.2%
B.3%
C.5%
D.6%
E.9%
[单项选择]无机粘合剂主要是由磷酸溶液和( )组成。
A. 碳化物
B. 硫化物
C. 碱化物
D. 氧化物
[单选题]以下哪条信令消息可作为SgNB触发的PSCell站间变更准备成功的依据?
A. SgNB Change Required
B. SgNB Addition Request Acknowledge
C. SgNB Modification Request Acknowledge
D. SgNB Modification Required
[不定项选择题]共用题干
More about Alzheimer's Disease
Scientists have developed skin tests that may be used in the future to identify people with Alzheimer's disease and may ultimately allow physicians to predict who is at risk of get-ting this neurological disorder.
The only current means of diagnosing the disease in a living patient is a long and expen-sive series of tests that eliminate every other cause of dementia.
“Since Aloes Alzheimer described the disease nearly a century ago,people have been trying to find a way to accurately diagnose it in its early stages,“said Patricia Grady,acting director of the National Institute of Neurological Disorders and Stroke in Bethesda,Mary-land."This discovery,if confirmed,could prove a big step forward in our efforts to deal with and understand the disease.”
Alzheimer's is the single greatest cause of mental deterioration in older people,affecting between 2.5 million and 4 million people in the United States alone. The devastating disorder gradually destroys memory and the ability to function,and eventually causes death. There is currently no known treatment for the disease.
Researches discovered that the skin cells of Alzheimer's patients have defects that inter-fere with their ability to regulate the flow of potassium in and out of the cells.The fact that the cell defects are present in the skin suggests that Alzheimer's results from physiological changes throughout the body,and that dementia may be the first noticeable effect of these changes as the defects affect the cells in the brain,scientists said.
The flow of potassium is especially critical in cells responsible for memory formation. The scientists also found two other defects that affect the cells'supply of calcium,another critical element.
One test developed by researches calls for growing skin cells in a laboratory culture and then testing them with an electrical detector to determine if the microscopic tunnels that govemn the flow of potassium are open. Open potassium channels create a unique electrical signature.
A spokesman for the Alzheimer's Association said that if the validity of the diagnostic
test can be proven it would be an important development,but cautioned that other promising
tests for Alzheimer's have been disappointing.
Which of the following about the relationship between Alzheimer's and dementia is true?
A.Dementia is one of the signs of Alzheimer's.
B.Alzheimer's is one of the causes of dementia.
C.They are two completely different diseases.
D.They are similar defects of the human brain.
[单项选择]This week marks the 10th anniversary of the Alar apple scare, in which many American consumers were driven into a panic following the release of a report by an environmental organization claiming that apples containing the chemical Alar posed a serious health threat to preschoolers. The report was disseminated through a PR (Problem Report) campaign and bypassed any legitimate form of scientific peer review. Introduced to the American public by CBS’ "60 Minutes," the unsubstantiated claims in the report led some school districts to remove apples from their school lunch programs and unduly frightened conscientious parents trying to develop good eating habits for their children.
Last month, Consumers Union released a report warning consumers of the perils of consuming many fruits and vegetables that frequently contained "unsafe" levels of pesticide residues. This was especially true for children, they claimed. Like its predecessor 10 years earlier, the Consumers Union report received
A. scientists warned that apples were dangerous
B. many school children became ill after eating apples
C. it was reported that apples were harmful to health
D. apples were discovered to have too much pesticide
[判断题]基坑土方量的计量应以施工图为依据,并将其作为竣工决算的依据。( )
A.正确
B.错误
[单选题]小电流接地系统中,当发生A相金属性接地时,下列说法不正确的是( )。
A.非故障相对地电压分别都升高到1.73倍;
B.A相对地电压为零;
C.相间电压保持不变;
D.BC相间电压保持不变,AC及AB相间电压则下降
[判断题]高空作业车(带斗臂)使用前应在预定位置空斗试操作一次。()
A.正确
B.错误
[单选题]牙拔除过程中可损伤软组织,最常见者为 ( )
A.颊
B.舌
C.腭
D.唇
E.牙龈
[单选题] 第8空()
A. difficulty
B. interest
C. pleasure
D. patience
[填空题]They haven’t finished the()(operate), though it has lasted 2 hours.
[多选题]建筑施工现场的安全“三宝”是( )。
A.安全绳
B.安全帽
C.安全带
D.安全网
[单选题]精神分裂症最常见的情感障碍为
A.情感淡漠
B.情绪低落
C.情绪高涨
D.恐惧
E.焦虑
[单选题]组态软件的英文简称有多种,不正确的是( )。
A.HMI
B.MMI
C.SCADA
D.DDC
[单选题]哪种眼病需要冷敷
A.眼充血
B.眼疲劳
C.眼干涩
D.角膜炎
[单项选择]根据《建设工程安全生产管理条例》,关于意外伤害保险的说法,正确的是()。
A. 意外伤害保险属于非强制险
B. 保险由建设单位办理
C. 实行施工总承包的,由施工总承包企业支付保险费
D. 保险期限自保险合同订立之日起至竣工验收合格之日止
[判断题]红外测温仪每次用后,应用清洁的压缩空气吹除表面尘埃,轻轻用软刷刷除玻璃清洁剂浸湿,可用溶剂清洗镜头。( )
A.正确
B.错误
[多选题]时代精神与民族精神是紧密相连的,表现在( )。
A.时代精神是民族精神的时代性体现
B.民族精神是时代精神形成的重要基础和依据
C.民族精神与时代精神的有机统一,构成了社会主义核心价值体系的精髓
D.民族精神与时代精神的有机结合,构成了社会主义道德体系的重要部分
[单选题]在工作地点,必须停电的设备为:(),与工作人员在进行工作中正常活动范围的安全距离小于规定的设备,带电部分在工作人员后面或两侧无可靠安全措施的设备.
A.与工作人员在进行工作中正常活动范围的距离小于表2规定的设备
B.检修的设备
C.电部分在工作人员后面或两侧无可靠安全措施的设备
[判断题]质量评分在60分以下的工程为不合格工程。如果分项工程未全部达到60分,则该分部工程应视为不合格。
[单项选择]失荣初期最常见的证型是()
A. 肝郁痰凝
B. 心脾火郁
C. 阴虚火炽
D. 营卫不和
E. 肝胆湿热
[单选题]室间隔缺损的典型杂音是( )
A.胸骨左缘第3~4肋间Ⅲ级以上收缩期杂音
B.胸骨左缘第2~3肋间Ⅲ级以上舒张期杂音
C.胸骨左缘第3~4肋间Ⅲ级以上舒张期杂音
D.胸骨左缘第2~3肋间Ⅲ级以上连续性杂音
E.以上都不是
[单项选择]阿司匹林
A. 游离水杨酸
B. 游离肼
C. 洋地黄皂苷
D. 其他甾体
E. 酮体
[单选题]A/SKIDC防滞)字符以琥珀 色显示,并伴有ECAM警戒时, 下面哪种情况是不可能的?
A.正常刹车可用
B.A/SKID & N/W STRG(防滞和前 轮转弯)电门在 OFF(关)位
C.BSCU探测到防滞 装置故障
D.所有BSC U故障
[判断题]为了方便操作维护人员上杆作业,设计选取主杆型号为 φ230×18 米、φ350×15 米、φ350×18 米的杆型时需在电杆上配套安装爬梯,爬梯底端至地面距离不低于2.5m。
A.正确
B.错误
[判断题]国家铁路、合资铁路、地方铁路以及专用铁路、铁路专用线等发生事故的调查处理,适用《铁路交通事故调查处理规则》。( )
A.正确
B.错误
[单选题]铭牌标志中5(20)A的“5”表示()。
A.标定电流
B.负载电流
C.最大额定电流
D.工作电流
[单项选择]()是发射数量最多的一类卫星。
A. 民用卫星
B. 载人飞船
C. 航天飞机
D. 军用卫星
[单选题]安全生产,要坚持防患于未然。要继续开展安全生产大检查,做到“全覆盖、零容忍、严执法、重实效”。要采用(),暗查暗访,特别是要审查地下油气管网这样的隐蔽指摘隐患。
A.不发通知、不打招呼、不听解释、不用陪同接待,直奔一线、直插岗位
B.不发通知、不打电话、不听汇报、不用陪同接待,直奔一线、直插现场
C.不发通知、不打招呼、不听汇报、不用陪同和接待,直奔基层、直插现场
D.不发通知、不打招呼、不听汇报、不用陪同和接待,直奔基层、直奔现场
[单选题] 杂交棉现蕾、开花的时期比常规品种早,单株现蕾和开花的数量通常也比同期常规品种( ) ,花期也更长。
A.少
B.多
C.相等
D.弱
[单项选择]What are the essential differences, ______ selling and marketing
A. between B. from
C. among D. for
[单选题]100.油藏()监测工作,一般为动态监测总工作量的50%。
A.压力
B.油气界面
C.含水
D.分层流量
[单选题]某企业为增值税一般纳税人,2019年12月初次购买增值税防伪税控系统专用设备,取得的增值税专用发票上注明价款2万元,增值税0.26万元,当月该企业销项税额5万元,当月购进材料,取得增值税专用发票,注明税额1.06万元。该企业当月应纳增值税( )万元。
A.4
B.3.68
C.4.68
D.1.68
[简答题]5.7.第7题0.1级三相电能表检定装置的同名端钮间电位差测试数据如图所示,输出电压为57.7V,请分别计算各相最大电位差与输出电压的比值______%、______%、______%?
教师详解:同名端钮间电位差测试需在最小量程最大负载下进行,计算时要将57.7V换算成mV