[简答题]
{{B}}Genetic Testing{{/B}}
Genetic testing is transforming medicine
and the way families think about their health. As science uncovers the
complicated secrets of DNA, we face difficult choices and new
challenges.
{{B}}About Genetic testing{{/B}}
The year was 1895
and Pauline Gross, a young actress, was scared. Gross knew nothing about the
human-genome (基因组,染色体组) project—such medical triumphs, but she did know about a
nasty disease called cancer, and it was running through her family. "I’m healthy
now," she often told Dr. Aldred Warthin from at the University of Michigan, "but
I fully expect to die an early death."
At the time, Gross’s
prediction was based solely on observation: family members had died of cancer;
she would, too. Today, more than 100 years later, Gross’s relatives have a much
more clinical option: genetic testing. With a simple blood test; they can
[单选题]距牵引供电设备支柱及牵引供电设备带电部分( )m范围以内具备接入综合接地条件的金属结构应纳入综合接地系统;不能接入综合接地系统的金属结构须装设接地装置,接地电阻一般不大于10Ω。
A.5
B.10
C.15
D.20
[单选题]在物流系统中,起着缓冲、调节和平衡作用的物流活动是( )。
A.运输
B.配送
C.仓储
D.装卸
[单选题]自动闭塞区间,车站使用总辅助按钮时,需经( )准许并发布命令。
A.列车调度员
B.车站值班员
C.车站调度员
D.车站站长
[判断题]关于采用明敷引下线及接闪器导体固定支架的最小间距,布置方式为垂直面上的水平导体,如果采用扁形导体,其间距500mm。
A.正确
B.错误
[单选题]下列哪项不是急性重症颅内压增高的表现 ( )
A.脉搏缓慢
B.脉搏洪大
C.呼吸浅快
D.血压高
[简答题]国铁集团及所属单位要按照领导负责、分工负责、( )、( )的要求明确安全生产职责。
[单选题]中度贫血可伴有哪些症状
A.苍白、乏力、怕冷
B.四脚厥冷
C.出汗
D.眩晕、心悸、尿少
E.意识障碍
[判断题]A公司的电工、焊工、叉车司机、起重机操作工等已经过专业部门培训并已取得资格证书,不再需要参加公司的“三级安全培训”。
A.正确
B.错误
[多项选择]肠梗阻的主要临床表现有:()
A. 腹痛
B. 呕吐
C. 腹胀
D. 停止自肛门排气排便
[判断题]消防车、消防艇以及消防器材、装备和设施,可以用于与消防和应急救援工作无关的事项。
A.正确
B.错误
[单选题]连台手术时下列正确的是
A.不需要更换手术衣.手套
B.先脱手术衣,再脱手套
C.先脱手套,再脱手术衣
D.不需洗手,另穿手术衣
E.手可随意接触
[单项选择]女,50岁,上唇肿胀,剧痛2天。体格检查:上唇中部见紫红色肿块,局部可见1个脓头,诊断为唇痈。其最危险的并发症是()
A. 眶下间隙感染
B. 海绵窦血栓性静脉炎
C. 败血病
D. 高热
E. 鼻旁脓肿
[单项选择]机体注射类毒素是属于哪种类型免疫()
A. 自然主动免疫
B. 人工主动免疫
C. 自然被动免疫
D. 人工被动免疫
E. 非特异性抵抗力
[单选题]载流承力索区段,承力索座处应加装( )mm 长的预绞式保护条。
A.500
B.700
C.1000
[单选题]施工单位在采用新技术、新工艺、新设备、新材料时,应当对( )进行相应的安全生产教育培训。
A.施工班组长
B.项目施工员
C.作业人员
D.项目负责人
[单项选择]小规模纳税人的增值税征收率为( )。
A. 17%
B. 13%
C. 3%
D. 4%
[单选题]《中国南方电网有限责任公司基建管理办法》第5.2.2.(6)条的规定,危险性较大的分部分项工程专项方案需报( )备案。
A.施工单位
B.建设单位
C.监理单位
D.业主项目部
[单项选择]容易受鼻腔疾病的影响而导致阻塞的是鼻泪管的()
A. 下段
B. 上段
C. 中段
D. 以上都是
E. 以上都不是
[多项选择]国有企业的单位负责人的( )不得担任本单位的会计机构负责人、会计主管人员。
A. 妻子
B. 儿女
C. 兄弟
D. 伯父
[单项选择] Mad Cow Disease in Canada
For years, Canada had been virtually free of mad cow disease. But in May 2003, veterinary officials in Alberta confirmed that a sick cow sent to a slaughterhouse in January of that year had been inspected, found to be substandard, and removed so that it would not end up as food for humans or other animals. The carcass was, however, sent to a processing plant for rendering into oils. Its head was kept for testing. Samples were sent to the world testing laboratories in the U. K. , which confirmed the case of mad cow.
"What is important is that the system worked," said Shirley McClellan, Alberta’’s agriculture minister at the time. "We have a very thorough and respected inspection system." She was insistent to remind the public that the disease is not contagious within a herd. But McClellan’’s assurances didn’’t stop the U. S. , Japan, South Korea, Australia and other countries from imposing temporary import bans of Canad
A. Y
B. N
C. NG
[单选题]当系统在边界上有能量和质量交换,但总体无质量交换时,该系统可能是( )
A.闭口系统
B.开口系统
C.稳态系统
D.稳定系统
[判断题].必须按规定的信号开、停输送机。
A.正确
B.错误
[单选题]老年人如厕正确的是( )
A. 从后至前擦肛门
B. 锁上厕所门,注意保护隐私
C. 照护人员下肢支撑老年人
D. 起身速度要慢,以免跌倒
E. 一手扶住老年人的前臂,另一手协助老年人脱裤
[多选题]调车作业中,车辆临时停在警冲标外方时,一批作业完了后,应立即送入警冲标内方。因特殊情况需在警冲标外方进行装卸作业时,须经( )准许。
A.车站值班员
B.列车调度员
C.调车区长
D.值班干部
[单选题]南宁轨道交通电客车客室车门探测最小障碍物尺寸为( )。
A.20×60mm(宽× 高)
B.25×60mm(宽× 高)
C.30×60mm(宽× 高)
D.35×60mm(宽× 高)