{{B}}New Foods and
the New World{{/B}} In the last 500 years, nothing about people — not their clothes, ideas, or languages — has changed as much as what they eat. The original chocolate drink was made from the seeds of the cocoa tree (可可树) by South American Indians. The Spanish introduced it to the rest of the world during the 1500’s. And although it was very expensive, it quickly became fashionable. In London, shops where chocolate drinks were served became important meeting places. Some still exist today. The potato is also from the New World. Around 1600, the Spanish brought it from Peru to Europe, where it soon was widely grown. Ireland became so dependent on it that thousands of Irish people starved whe A. Brazil B. Colombia C. Ethiopia D. Egypt [单选题]架空绝缘导线不得视为( )。
A. 绝缘设备 B.导电设备 C.承力设备 D.载流设备 [单项选择]女性,24岁,长期畏寒、头昏、乏力,皮肤黄染,肝肋下1.0cm,脾肋下4cm,HGB80g/L,白细胞和血小板正常。正细胞贫血。红细胞脆性试验0.5%,血象可见晚幼红细胞。骨髓增生明显活跃。该患者最可能诊断是()
A. 海洋性贫血 B. 慢性肝炎急性发作 C. 自身免疫性溶血性贫血 D. 巨幼细胞贫血 E. 急性红白血病 [单项选择]手少阳经腧穴一般不用于治疗的病证是()
A. 喉痹 B. 齿痛 C. 耳鸣 D. 头痛 E. 肩痛 [单选题]网关使应用不同协议的网络可以通过网关相连,网关使用了OSI协议的全部( )。
A.A、五层 B.B、六层 C.C、四层 D.D、七层 [单选题]高站台乘降作业时,站停时间超过()分钟时,车门口与站台间使用安全踏板,组织乘降的车门与相邻车厢间空档处设置警示带。
A.4 B.5 C.6 D.7 [判断题]当一事物存在时,其自身已经包含着自我肯定和自我否定的因素,构成事物自我发展的内在基础。 ( )
[单选题]通讯系统发生故障,无法通过“重新启动”等简单措施予以恢复的,不论白天或者夜晚,都应向( )报告。
A.接警科长 B.联通人员 C.中心工程师 D.网络维护员 [单选题]任何单位和个人不得阻挠和干涉对事故的报告和()工作
A.调查 B.处分 C.通报 D.公布 [单选题]正线道岔防爬器安装数量和方式表规定,单线铺设木枕时,18号道岔辙叉趾前正方向/反方向安装数量为( )对。
A.43559 B.43618 C.43622 D.43681 [单项选择]一变压器做感应耐压试验,用频率为150赫兹的电源做试验电源,试验时间应为()秒。
A. 60 B. 30 C. 50 D. 40 [判断题] 装设、拆除接地线均应使用绝缘棒并戴手套,人体不得碰触接地线或未接地的导线。( ) (1.0分)
A.正确 B.错误 我来回答: 提交
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