| Milk was one of the main foods for
people long before history was written. Maybe (21)
will remain an important food as long as there are (22) that
give milk. The old word "milk" (23) Sanskrit(梵文), one of the
oldest (24) known to man. A very old picture of milking,
(25) was drawn five thousand years ago, has been
found. In the years long ago, people got their milk (26) their own animals. But (27) modern times new inventions made the milk industry(产业) a big business. (28) 1851 Gall Borden found a way to (29) some of the water out from milk. This made milk keep longer. Four years later, Louis Pasteur (30) a way to kill the bacteria(细菌) in milk. Then a special milk bottle was made. This was followed (31) the invent A. From B. At C. On D. In [简答题]outer packing
[单项选择]某企业一年销售收入2000万元，变动成本600万元，固定成本1200万元，则贡献毛益总额为（）万元。
A. 800 B. 200 C. 1400 D. 400 [单选题]测试电压互感器接线前必须检查各测量线的（）.接线应由有经验的人员进行.防止电压互感器二次回路短路。
A.A是否完好 B.B使用情况 C.C绝缘情况 D.D以上全部 E.略 F.略 [单选题]通过比较分析仅能得出可能原因的研究设计是( )
A.队列研究 B.病例对照研究 C.描述性研究 D.干预性研究 [判断题]接触线CTHA-120是表示直径为120mm的银铜合金接触线。( )
A.正确 B.错误 [单项选择]实际有病，用该诊断标准正确判为阳性的能力称（）。
A. 灵敏度 B. 特异度 C. 阳性似然比 D. 阳性结果的预测值 E. 阴性结果的预测值 [单项选择]基桩检测时，当发现检测数据异常时应（）
A. 查找原因重新检测 B. 进行验证 C. 扩大检测范围 D. 应得到有关方面确认 [单项选择]脾之大络，名为
A. 天池 B. 俞府 C. 鸠尾 D. 大包 E. 虚里 [判断题]卸扣的销子应扣在活动性较大的索具内。
A.正确 B.错误 [单选题]根据相关文件的规定，遇劫信息的传递要简明、准确、（ ）。
A.统一 B.及时 C.无歧义 D.以上都对 我来回答: 提交
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