皮皮学，免费搜题
登录
搜题
【判断题】
标准溶液就是知道自己的准确浓度,就是“知己”,它可以用于分析测定未知物质的浓度,就是“知彼”,所以标准溶液用于科学定量分析,已经上百年的历史了,“知己知彼,百战不殆”,生命不息。A.
正确
B.
错误
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】Google and Microsoft have approached the market using quite different business models. Over time, they have engaged in multi-point competition. Which of the following best describes this competition t...
A.
They have very divergent corporate strategies.
B.
They are an example of co-opetition in action.
C.
They are largely competing in mobile device operating systems.
D.
They compete for market share in several different product categories.
【单选题】Y-△降压启动控制线路中,将电动机定子绕组接成△时的正确连接方式( )。
A.
U1与W2、V1与U2、W1与V2
B.
U1与U2、V1与V2、W1与W2
C.
U1与V2 、V1与U2、W1与W2
D.
U1与W2、V1与V2、W1与U2
【简答题】对 x 赋值,从 5 到 25 ,间隔是 0.1 ,应该写成( )
【单选题】根据GB50343一2004《建筑物电子信息系统防雷技术规范》中的5.1.2“需要保护的电子信息系统必须采取等电位连接与接地保护措施”这一条款是()
A.
指导性条款
B.
一般需要执行的条款
C.
推荐性条款
D.
强制性条款
【单选题】根据GB50343-2004《建筑物电子信息系统防雷技术规范》中的5.1.2“需要保护的电子信息系统必须采取等电位连接与接地保护措施”这一条款是:( )
A.
指导性条款
B.
一般需要执行的条款
C.
推荐性条款
D.
强制性条款
【单选题】Which of the following is an example of how U. S. online matchmakers have adapted their business models to better serve customers from other cultures?
A.
inviting parents to fill out profiles for their children in India
B.
emphasizing the goal of finding true love in Scandinavia
C.
eliminating profiles in Japan
D.
lowering the cost of subscription in China
【简答题】English-Chinese Translation E-commerce Business Models A business model is defined as the organization of product, service and information flows, and the source of revenues and benefits for suppliers ...
相关题目：
参考解析：
知识点：
题目纠错 0
发布
