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问题 选择题

括号内是区别下列各组常见物质的方法，其中错误的是 [ ]

A．氢氧化钠固体和硝酸铵固体(加水)

B．铁和铜(用盐酸)

C．蒸馏水和食盐水(看颜色)

D．氧气和二氧化碳(用燃着的木条)

答案

答案：C

单项选择题

2岁女孩，股骨干上1/3斜行骨折，治疗应采用（）

A.股骨髁上骨牵引

B.胫骨结节牵引

C.水平皮肤牵引

D.垂直悬吊牵引

E.切开复位内固定
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单项选择题

You are a new project manager who has never managed a project before．You have been asked to plan a new project．It would be BEST in this situation to rely on （） during planning in order to improve your chance of success．

A．your intuition and training

B．stakeholder analysis

C．historical information

D．configuration management
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