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【单选题】
传动的特点有( )A.
4
B.
外轮廓尺寸紧凑,传动效率高
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【单选题】In 1995 about 700,000 robots were operating in the industrialized world. Over 500.000 were used in Japan, about 120,000 in Western Europe, and about 12,000 in the United States. Many robot application...
A.
robots can be used in many fields
B.
what jobs robots can do
C.
robots' activities
D.
human being's partner—robots
【单选题】The maximum sea ice cover is about______.
A.
17,000 sq km
B.
170,000 sq km
C.
1,700,000 sq km
D.
17,000,000 sq km
【单选题】在短期内，随着产量的增加，平均固定成本会越变越小，于是平均成本曲线和平均可变成本曲线( )。
A.
两曲线最终会相交
B.
两曲线最终会合并成一条曲线
C.
两曲线的垂直距离会越来越小
D.
两曲线的垂直距离会越来越大
【单选题】According to the article, which of the following is NOT true?
A.
In 1995 about 700,000 robots were operating in the industrialized world.
B.
Why people use the robots is that they are neither dangerous nor unpleasant.
C.
In medical laboratories, robots can be used to handle Potentially dangerous materials, such as blood or urine samples.
D.
In other cases, robots are used in repetitive, unchangeable tasks in which human performance might degrade over time.
【单选题】In 1995 about 700,000 robots were operating in the industrialized world. Over 500,000 were used in Japan, about 120,000 in Western Europe, and about 2,000 in the United States. Many robot applications...
A.
robots can be used in many fields
B.
what jobs robots can do
C.
robots' activities
D.
human being's partner—robots
【单选题】In 1995 about 700,000 robots were operating in the industrialized world. Over 500,000 were used in Japan, about 120,000 in Western Europe, and about 2,000 in the United States. Many robot applications...
A.
robots can be used in many fields
B.
what jobs robots can do
C.
robots' activities
D.
human being's partner --robots
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