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【简答题】
钢轨焊接焊接作业轨不低于()℃,且应避免大风和雨雪等不良天气。
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【单选题】That most used cars are sold by intermediaries (i.e., used car dealers) provides evidence that these intermediaries
A.
have been afforded special government treatment, since used car dealers do not provide information that is valued by consumers of used cars.
B.
are able to prevent potential competitors from free-riding off the information that they provide.
C.
have failed to solve adverse selection problems in this market because "lemons" continue to be traded.
D.
have solved the moral hazard problem by providing valuable information to their customers.
【单选题】In the nation of Transporta, the income elasticity of demand for used cars is -2.66. So when incomes in this nation increase by 10 percent,
A.
the quantity of used cars demanded will increase by 26.6 percent.
B.
used cars will be normal goods.
C.
the quantity of used cars demanded will decrease by 26.6 percent.
D.
the demand curve for used cars will shift rightward.
【单选题】Despite their varied designs, navigation computers used in cars ______.
A.
are more or less the same price
B.
provide directions in much the same way
C.
work on more or less the same principles
D.
receive instructions from the same satellites
【判断题】在卧式万能铣床上切断加工较宽的工件,工作台零位不准会使铣刀扭曲折损。
A.
正确
B.
错误
【单选题】在进行文献检索前的准备工作不包括()。
A.
检索目的
B.
数据库选择
C.
检索策略
D.
结果浏览与分析
【单选题】used cars 意为
A.
二手车
B.
手刹
C.
脚刹
D.
踏板
【单选题】What are parking meters used to?
A.
To limit the numbers of cars parked in the streets.
B.
To prevent cars parked in the street from being stolen.
C.
To make it convenient for drivers to pay the fee.
D.
To limit the time of cars left in the streets.
【单选题】《义务教育语文课程标准》(2011年版 )关于语文课程性质的论述中,第一句话是:语文课程是一门( )的综合性、实践性课程。
A.
学习语言文字运用
B.
具备工具性的
C.
具备人文性的
D.
注重情感表达的
【单选题】凯恩斯提出的最有特色的货币需求动机是
A.
交易动机
B.
预防动机
C.
投资动机
D.
投机动机
【单选题】眼及眼眶CT检查常规采用
A.
冠状位扫描
B.
矢状位扫描
C.
轴位扫描
D.
增强扫描
E.
直接增强行冠状位扫描
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