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【单选题】
The internal force of a material, which tends to resist deformation when subjected to external forces, is known as _____.
A.
stress
B.
strain
C.
shear strength
D.
ultimate tensile strength
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【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】雾灯一般在什么天气情况下使用?( )
A.
晴天
B.
小雨天
C.
阴天
D.
有雾天气
【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】随着产量的增加,短期平均固定成本会()
A.
增加
B.
不变
C.
减少
D.
不能确定
【单选题】随着产量的增加,短期平均固定成本会:
A.
增加
B.
不变
C.
减少
D.
不确定
【单选题】东方表业公司生产的探路者防水手表即将投放市场,为争创名牌,开拓新路,准备在全国范围内征集广告语,该公司需要在报纸上刊登( )在社会上广泛告知。
A.
声明
B.
广告文案
C.
启事
D.
产品说明书
【单选题】Admittedly, minor accidents and slip ups continue to shake public confidence in nuclear power. Given the unquantifiable risks that nuclear power carries, it is only right that the industry be subjecte...
A.
People have little confidence in nuclear power for the potential disaster of nuclear accidents.
B.
People think it important to exercise strict monitoring and effective management of the existing plants.
C.
People believe the best way to avoid nuclear disaster is to shut down all the nuclear power stations.
D.
People agree to prohibit the existing nuclear plants from running to the end of their useful lives.
【判断题】在短期内,随着产量的增加,平均固定成本会越来越小,于是,平均成本曲线和平均可变成本曲线之间的垂直距离会越来越小,直至两线相交。(    )
A.
正确
B.
错误
【单选题】In order to improve the security in the world, at no time ______ the first to use nuclear weapons.
A.
will China be
B.
China will be
C.
will be China
D.
be will China
【单选题】From the passage we can learn that ______.
A.
many women wanted to take part in the tests
B.
the pay was important for the women
C.
the women often quarreled with each other so they had to tolerate each other
D.
they could drink some wine after work
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