The World Health Organization estimates that about one-third of all people are infected with bacteria that cause tuberculosis. Most times, the infection remains inactive. But each year about eight million people develop active cases of TB, usually in their (1) . Two million people die (2) it. The disease has (3) with the spread of AIDS and drug-resistant forms of tuberculosis.
Current treatments take at least six months. Patients have to (4) a combination of several antibiotic drugs daily. But many people stop (5) they feel better. Doing that can (6) to an infection that resists treatment. Public health experts agree that a faster-acting cure for tuberculosis would be more effective. Now a study estimates just how (7) it might be. A professor of international health at Harvard University led the study. Jos
A. developed
B. invented
C. delayed
D. refused
{{B}}Sleeping{{/B}} People who sleep for more than eight hours a night do not live as long as those who sleep for six hours, according to the biggest study yet into sleep patterns and mortality (死亡率). Scientists have no explanation for the findings and do not know if they mean people who like a lie-in (睡懒觉) can extend their lives by sleeping less. Although it is a common belief that sleeping for at least eight hours a night is vital for health and well-being, the six-year study involving more than 1.1 million Americans older than 30 found that those who slept for less than eight hours were far from doing themselves any long-term harm. "Individuals who now average 6.5 hours of sleep a night can be reassured that this is a safe amount of [多选题]政府采购项目中,由采购人或者其委托采购代理机构负责公开的采购项目信息,包括( )等信息。
A.采购项目公告 B.采购文件 C.采购项目预算金额 D.采购结果 [单选题]利用GPS送出的信号进行对时,下列( )信号对时精度最差。
A.1PPM B.1PPS C.串行口 D.IRIG-B [判断题]树立科学而崇高的理想信念是加强思想道德修养、提高精神境界的核心。
A.正确 B.错误 [判断题]《供电营业规则》规定:用电计量装置原则上应装在供电设施的产权分界处。
A.正确 B.错误 [单项选择]10KV、20KV、35KV配电装置的裸露部分在跨越人行过道或作业区时,若导电部分对地高度分别小于2.7m、2.8m、2.9m,该()两侧和底部须装设护网。
A. 裸露部分 B. 配电装置 C. 导电部分 [单选题] 特种作业操作证申请复审或者延期复审前,特种作业人员应当参加必要的安全培训,安全培训时间不少于()个学时。
A.8 B. 10 C. 12 [单项选择]小儿体液免疫特点中,下述哪项是错误的()
A. 免疫球蛋白包括IgA,IgG,IgM,IgD及IgE5类 B. IgG有4个亚类 C. IgA含量增高提示有宫内感染可能性 D. 免疫球蛋白是巨噬细胞产物 E. 小儿体液免疫的发育随年龄增长逐步完善 [单选题]注射用无菌粉末的精制过程必须在 (C)洁净环境下进行。
A. B级 B. C级 C. B级背景下的A级 D.D级 [填空题]钢轨探伤车可以在()的速度下进行探伤。
[单选题]可乐定的降压作用机制
A.与激动中枢的α1受体有关 B.与阻断中枢的α1受体有关 C.与阻断中枢的α2受体有关 D.与阻断中枢的β2受体有关 E.与激动中枢的α2受体有关 [多项选择]FIDIC《土木工程施工合同条件应用指南》中有关预付款支付的规定,下列描述正确的是()。
A. 承包人应先提交经发包人认可的履约保证书 B. 承包人应先开始施工 C. 预付款的数额不应出现在投标书上 D. 由工程师开具证明支付给承包人 E. 承包人应先提交经发包人认可的条件对全部预付款价值进行担保的保函 [单项选择]病历摘要:男,25岁,头昏乏力1年,近2个月加重;检验结果:Hb50g/L,骨髓亚铁氰化钾染色骨髓小粒含铁血黄素(+++)。假如该患者骨髓亚铁氰化钾染色骨髓小粒含铁血黄素(+),幼红细胞内铁粒减少,骨髓象显示:中晚幼红细胞达45%,体积小,胞质蓝、量少,边缘不规则,最可能的是()。
A. 巨幼细胞性贫血 B. 再生障碍性贫血 C. 缺铁性贫血 D. 慢性溶血性贫血 E. 珠蛋白合成障碍性贫血 [单项选择]人类历史上,通过临床观察发现的第一个职业肿瘤是()
A. 石棉矿工——胸膜间皮瘤 B. 扫烟囱工——阴囊癌 C. 接触放射性物质人员——肺癌、白血病 D. 生产品红染料的工人——膀胱癌 E. 老年家具工——鼻窦癌 [判断题]生产经营单位不得以书面形式与从业人员订立协议,免除或者减轻其对从业人员因生产安全事故伤亡依法应承担的责任。
A.正确 B.错误 [单选题]远方遥控操作继电保护软压板,至少应有( )指示发生对应变化,且所有这些确定的指示均已同时发生对应变化,方可确认该压板已操作到位。
A.两个 B.三个 C.四个 D.一个 [简答题]机车综合无线通信设备通信模式转换提示标志采用涂有白底色、黑框、写有黑“通信转换”字样的方形板。
[名词解释]硬骨板 lamina dura
[单选题]判定钢材是否合格的依据是( )。
A.质量好坏 B.标准 C.用户要求 [多选题]银行账户利率风险进行计量常用方法包括()
A.缺口分析 B.久期分析 C.敏感性分析 D.情景模拟及压力测试 [单项选择]关于腮腺恶性肿瘤CT检查不正确的是()。
A. 边界模糊的密度增加区 B. 肿瘤中心有低密度坏死区 C. 肿瘤合并淋巴腺肿大 D. 小的恶性肿瘤边界可以清楚锐利,可以与良性肿瘤合并存在 E. 表现具有特异性,可以与炎症病变进行鉴别 我来回答: 提交
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