【单选题】People are surprised to learn that _______.
A.
Negroes' achievements are not shown in history books
B.
Phillis Wheatley learned English
C.
Negroes are good at mathematics
D.
Negroes have a very long history in America
【单选题】从风险管理角度看,保险是
C.
社会经济保障制度的重要组成部分,是社会生产与社会生活的精汇的稳定器
【单选题】Suppose the price elasticity of supply for candles is 0.3 in the short run and 1.2 in the long run. If an increase in the demand for candles causes the price of candles to increase by 36%, then the q...
A.
0.8% in the short run and 3.3% in the long run.
B.
1.2% in the short run and 0.3% in the long run.
C.
10.8% in the short run and 43.2% in the long run.
D.
120% in the short run and 30% in the long run.
【单选题】One of the facts that reflect the primitiveness of airline industry is ______.
A.
its history is much longer than that of car industry
B.
it is composed of international and domestic carriers
C.
its market is divided by many a relatively small carriers
D.
it is still an industry of comparatively low profits
【单选题】一群成年番鸭突然发病,病死率在60%以上,临床表现主要为体温升高、两腿麻痹、排绿色稀粪。剖检见食道黏膜出血、水肿和坏死,并有灰黄色伪膜覆盖或溃疡;泄殖腔黏膜出血;肝有坏死点。该群鸭发生的疾病可能是( )
【单选题】从风险管理的角度看,保险是( )。
B.
一种风险管理的方法,可起到分散风险、消化损失的作用
C.
社会经济保障制度的重要组成部分,社会生产与社会生活的精巧的稳定器