【简答题】对差动保护来说,变压器两侧的差动CT均应接成星型。()
【判断题】砂浆的和易性包括流动性、保水性、黏聚性。 ( )
【单选题】某公司的职工在三亚旅游时,主动把吃剩的瓜子壳、果皮等收拾干净,放到垃圾箱里。他们的这种行为是
D.
应该的,是爱护环境卫生、自觉遵守社会公德的表现
【判断题】对差动保护来说变压器两侧的差动Cr应接成星型。
【判断题】对差动保护来说,变压器两侧的差动CT均应接成星型。
【判断题】砂浆的和易性包括流动性和粘结力两个方面。
【简答题】下图所示为PuMA560机器人的操作机的轴测简图,已知其结构尺寸及运动关节参数如图。试绘制该机器人操作机的机构运动简图,并列出其操作机的运动学方程。
【单选题】Exercise 1 Listen to the recording and choose the right answers to the questions you hear. 1.
A.
The similarity between eBay and Amazon.
B.
The history of the development of Amazon.com.
C.
The key to the success of Amazon.com.
D.
The competition between Amazon.com and Barnes & Noble.
【单选题】Exercise 1 Listen to the passage and choose the right answers to the questions you hear. 1.
A.
They enjoy equal pay for equal work.
B.
Most of them can be promoted to the highest rank if they choose.
C.
They seem to receive better treatment than women in most other countries.
D.
They dress conservatively at work.