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【判断题】
对比指的是显著的差异,表现为渐变;微差指的是微弱的差异,表现为突变。A.
正确
B.
错误
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【简答题】作用于皮肤粘膜及创伤防腐消毒药有________、________。
【简答题】jump 作用于皮肤粘膜及创伤防腐消毒药有________、________。
【简答题】Task 2 Directions: This task is the same as Task 1. The 5 questions or unfinished statements are numbered 41 to 45. Terms and Conditions of Employment These terms and conditions should be read before ...
【简答题】已知地层中某一单元土体,σ1=200kPa,σ3=120kPa,则该点的剪应力最大值τmax= kPa ,该剪应力最大值所在的面与水平面(最大主应力作用面)呈 °。
【单选题】Andy views beer and pizza as complements to one another. If the price of pizza decreases, economists would expect:
A.
Andy's demand for pizza to increase.
B.
Andy's demand for pizza to decrease.
C.
Andy's quantity of pizza demanded to decrease.
D.
Andy's demand for beer to increase.
【单选题】土体中某点最大主应力σ1=200kPa,土体粘聚力c=30kPa,内摩擦角为φ,tan2(45-φ/2) =0.25,达到极限平衡状态时,所需要的最小主应力σ3f等于( )
A.
20kPa
B.
30kPa
C.
40kPa
D.
50kPa
【单选题】Pizza and beer are complementary goods for consumers in a local market. The beer industry, which has constant marginal cost, is perfectly competitive and is now in long run equilibrium. If the market ...
A.
The market price of beer falls and each firm produces less beer.
B.
The market price of beer does not change, but the quantity increases because new firms enter the beer industry.
C.
The market price of beer does not change, but the quantity decreases because some firms exit the industry
D.
The market price of beer rises and each firm produces more beer
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