U.S. to Start $ 3.2 Billion Child Health Study in
January A study that will cost $ 3.2 billion and last more than two decades to track the health of 100,000 U. S. children from before birth to age 21 will be launched in January, U. S. health officials said on Friday. Officials from the U. S. government’s National Institutes of Health said they hope the study, to be conducted at 105 locations throughout the United States, can help identify early-life influences that affect later development, with the goal of learning new ways to treat or prevent illness. The study will examine hereditary(遗传的) and environmental factors such as exposure to certain chemicals that affect health. Researchers will collect genetic and biologic A. conduct research B. track public health C. prevent or treat illness D. speed up development [单项选择]加工双光镜时,()应与两子镜片基点(顶点)间距离相一致。
A. 两眼球中心间距离 B. 两眼瞳孔中心间距离 C. 远用瞳距 D. 近用瞳距 [多选题]某检修车间在变电所对避雷器和避雷针进行检修,请回答下列问题。(2)关于避雷针小修范围和标准描述正确的是( )
A.检查杆塔无倾斜和弯曲,固定牢靠;除锈补漆,必要时全面涂漆。 B.检查避雷针,无熔化和断裂。 C.检查底部装置。 D.对避雷针灯进行清扫。 [多项选择]下列哪些诗歌作品采用了象征的艺术手法?()
A. 《死水》 B. 《大堰河——我的保姆》 C. 《手推车》 D. 《生活是多么广阔》 E. 《我是一条小河》 [判断题]厚度代表值、压实密度代表值与f分布系数有关。 ( )
[单选题]可作为确诊器质性心脏病依据的是( )。
A.室性期前收缩 B.二度Ⅰ型房室传导阻滞 C.阵发性心房颤动 D.右束支传导阻滞 E.以上都不是 [多选题]消防救援人员之间通常称( )
A.职务 B.姓加职务 C.职务加同志 D.姓名 [判断题]“房联贷”的还款账号与关联住房贷款还款账号须为同一账号。
A.正确 B.错误 [简答题]Gunman argues convincingly that the stability of the Black family encouraged the transmission of--and so was crucial in sustaining--the Black heritage of folk music, and religious expression from one generation to another, a heritage that slaves were continually fashioning out of their African and American experience.
[简答题]鼻塞法
[单项选择]男性,52岁。阵发性心悸半年,时有胸闷,登2楼觉气急3个月,下肢水肿3天来院门诊。心电图示窦性心律,心率64次/分,P-R间期0.24秒伴完全性右束支传导阻滞,诊断为扩张型心肌病,心功能不全。入院后予以洋地黄,利尿剂和扩血管药物治疗。第4天突然神志不清,抽搐,听诊心音消失,血压为0mmHg。经救治以后神志清醒,心跳恢复,心率45次/分,并有频发早搏。此时处理应()。
A. 临床心脏起搏下静脉滴注利多卡因 B. 静脉注射普罗帕酮(心律平) C. 静脉滴注利多卡因 D. 多巴酚丁胺静脉滴注 E. 停用所有药物观察 [单选题]火灾条件下,液化石油气在得到充分空气时,燃烧异常猛烈、速度快,爆速可达()。
A.1000~1500m/s B.1500~2000m/s C.2000~3000m/s D.2500~3000m/s [报关编码]亚麻或苎麻制非针织非钩编窗帘
[单选题]1500V直流开关柜中二次辅助电源的工作电源一般是(___)
A.DC220V B.DC5V C.AC110V D.AC35V [多选题]消防栓系统中,消火栓箱按水带的安置方式可以分为( )。
A.卷盘式 B.明装式 C.挂置式 D.托架式 E.卷置式 [单项选择]属于流动负债的是( )。
A. 递项所得税负债 B. 长期应付款 C. 应付债券 D. 应付及预收款项 [判断题]在塔式起重机的顶升机构中广泛使用液压传动系统。( )
A.正确 B.错误 [判断题]兆欧表测得的是在额定电压作用下的绝缘电阻值。
A.正确 B.错误 我来回答: 提交
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