题目详情
题目详情:

[单项选择]NK细胞杀伤肿瘤细胞机制不包括()
A. 无肿瘤特异性
B. 具有MHC限制性
C. IL-2可增强其杀伤活性
D. 可通过ADCC作用杀伤肿瘤细胞
E. 可释放穿孔素溶解肿瘤细胞

热门试题:

[单项选择]第三产程中,子宫不协调痉挛性收缩可造成()。
A. 胎盘残留
B. 胎盘粘连
C. 胎盘剥离不全
D. 胎盘嵌顿
E. 胎盘植入
[单项选择]木制件白坯处理时先用()砂磨。
A. 300号砂纸
B. 400号砂纸
C. 0号砂纸
D. 80~100号砂纸
[不定项选择题]A.卡铂
A.环磷酰胺
B.氟尿嘧啶
C.阿霉素
D.长春新碱
E.属于烷化剂抗癌药物的是
[单选题]犯罪嫌疑人呼某在被监视居住期间私自外出并找同案的犯罪嫌疑人王某串供,侦查人员认为需要对呼某逮捕,在逮捕之前可以对呼某()
A.取保候审
B.先行拘留
C.拘传
D.继续盘问
[判断题]酸性焊条多为低氢型焊条,所得焊缝冲击韧度高,力学性能好,但电弧稳定性比碱性焊条差。( )(难)
A.正确
B.错误
[简答题]小聪现在是一名初中生,小学时成绩优秀,并在升初中的升学考试中以第一名的 成绩考入班级。进入初中后,因学习不适应,渐渐地成绩下降到二十几名,这次考试 给小聪的打击不小。从此,小聪来学校时总把衣服的拉链拉得很高,将头藏进衣服 .里,不愿见人。 小聪的这种状况属于什么心理现象造成这一问题的原因是什么如何帮助小聪 摆脱困境
[判断题] ( ) 一架信号机只能可防护一条进路,也就是说一架信号机,只可作为一条进路的始端。( )
A.正确
B.错误
[填空题]
China has the largest population of young netizens in the world, but they turn to the Internet mostly to play games.
Step into any Internet caf in China and you are bound to see this sight: rows of young faces, their eyes fixed on computer screens, earphones over their heads, their fingers moving rapidly on the keyboards. A chorus of mouse clicks provides the background music.
The Research Report on Internet Entertainment Trends of China’s Youth, issued by the Institute of Public Governance of Renmin University of China, may shed some light on the Internet caf scene. The report, which was released during the 2005 China Youth and Entertainment Forum last September, outlines how the country’s young people entertain themselves. The top three activities are online entertainment (39.9%), sports (18.3%) and watching television (12.3%).
While blogs, or personal Web logs, have drawn a lot of media attention as a major focus of Internet
[判断题]Ⅴ类门禁授权,按照核准的准入区域授权,机场护卫消防部、机场安检站负责日常使用管理。( )
A.正确
B.错误
[多选题]按照《超限运输车辆行驶公路管理规定》(交通运输部令2016年62号)超限认定标准,(),其车货总质量不得超过25000千克﹔( ),其车货总质量不得超过27000千克。
A. 三轴货车
B. 三轴汽车列车
C. 四轴货车
D. 四轴汽车列车
[判断题]产生直流高压的半波整流电路中,高压整流硅堆的额定参数主要有额定反峰电压和额定整流电流。
A.正确
B.错误
[名词解释]空载电流
[单项选择]某设备工程由若干个单位平行承包,由于承包商甲拖延进度而导致其后续承包商乙不能按原合同规定执行,承包商乙( )提出工程延期和费用补偿申请。
A. 不应向设备监理工程师
B. 应向承包商甲
C. 应通过设备监理工程师向业主
D. 应直接向业主
[单项选择]Some of the problems that (41) people in the U.S. (42) in the cities during old days are still (43) us -- poor planning, problems in (44) neighborhoods, and public transportation.
(45) was a very important for city governments in the last century, (46) regard to water supplies, it was known that water could be polluted, (47) they didn’t know (48) . Trying to get pure water was a big problem.
People like to talk about the (49) old days, but actually, the cities of the 19th century were dirty and, (50) , filthier than today. (51) disease was a great (52) . There was still smallpox(天花) and also yellow fever and malaria. The (53) death rate was high, and there were other dangers as well.
(54) true that people were not being killed by cars. (55) , they often were killed or seriously (56) by runaway horses. It was quite common.
Planning of cities and their
A. city
B. money
C. health
D. land
[简答题]结合科学发展观,针对兴义市目前的经济状况及人口结构,为本市未来的发展提供一些科学决策和建议。
[单选题]关于皮脂腺囊肿的叙述,下列说法不正确的是
A.又称表皮囊肿
B.皮脂腺排泄受阻所形成的潴留性囊肿
C.多见于皮脂腺分布密集部位,如头面及背部
D.非真性肿瘤
E.易继发感染伴奇臭
[单项选择]Text
An animal species becomes extinct when it fails to produce enough young in each generation to keep pace with the death-rate. We can (26) from fossil evidence in rocks that many living species have become extinct over the millions of years (27) life began. It is a natural (28) and extinction is the (29) of any animal that has specialized too far to change (30) its environment changes, or has to compete with a better- (31) and more powerful animal. (32) remarkable technical developments during the past few centuries, man has destroyed or (33) destroyed some species by killing them (34) such a rate that they couldn’t produce enough offspring, or by completely changing their natural environment at surprising speed.
A number of examples can be given of the way (35) which natural environments are being rapidly changed—Amazonia, for instance. There is every (36) that m
A. hope
B. similarity
C. opportunity
D. likelihood
[多选题]瓦斯检查的范围应包括所有的( )。  
A.采掘工作面
B.硐室
C.井巷
D.使用中的机电设备的设置地点
E.有人员作业的地点
[单选题]10kV高压开关柜的额定电压为()kV,低压开关柜的额定电压为0.4kV。
A.10
B.12
C.15
D.20
[单选题] 银行业监督管理机构工作人员,应当(),不得利用职务便利牟取不正当的利益。
A.忠于职守
B.依法办事
C.公正廉洁
D.忠于职守,依法办事,公正廉洁
[填空题]威尔士建筑师琼斯于1856年出版的著作是《()》。
[单选题]挂风障时底压条上相邻两钉的间距不得小于[ ]m( )
A. 0.5
B. 0.6
C. 1
[单选题]技术层
A.技术层
B.车间层
C.调度层
D.作业层
[单项选择]作为重要传染源的肺结核病是( )
A. 浸润型肺结核
B. 结核球
C. 结核性胸膜炎
D. 慢性纤维空洞型肺结核
E. 局灶性肺结核
[判断题]维护质量是衡量维护工作优劣程度的评判依据,包括设备质量、工作质量和运用质量。( )
A.正确
B.错误
[单选题]不属于凉水塔巡检内容的是( )。
A.配水情况
B.风机工况
C.回水压力
D.旁滤池工况
[单选题]导爆索捆绑在爆炸杆上的有效长度应控制在( )左右
A.0.5m
B.1m
C.1.5m
D.2m
[单选题]2.130. 第130题 营业厅“三型一化”是指智能型、市场型、体验型和()。
A.线上线下一体化
B.自动化
C.人性化
D.智能化
[单项选择]根据GB/T19000-2008的规定,以下哪个不是质量管理体系文件的内容()
A. 企业管理手册
B. 质量手册
C. 质量管理标准所要求的各种生产、工作和管理的程序性文件
D. 为确保其过程的有效策划、运行和控制所需的文件
[单选题]钢筋混凝土盖板箱涵应在沉降缝外围敷设( )宽的防水层。
A.0.2mm
B.0.3mm
C.0.4mm
D.0.5mm
[单项选择]寻呼指示信道PICH描述正确的是()
A. SF=16,一般配置在TS0
B. SF=8,一般配置在TS0
C. SF=4,一般配置在TS0
D. SF=1,一般配置在TS0
[单项选择]呼吸衰竭的病因没有下面哪项()
A. 胸廓畸形
B. 气管异物
C. 广泛肺炎
D. 腹水、腹内压升高
E. 氰化物中毒
[判断题]电流互感器作为一种辅助测量元件,在电磁测量及继电保护领域内有着极广泛的应用。(易)( )
A.正确
B.错误
[单项选择]肝素应用过量可引起
A. 心功能不全
B. 血压下降
C. 手足抽搐
D. 自发性出血
E. 过敏反应

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