How long do the business angels usually expect to get a good return？
A. in a year
B. as soon as the money is invested
C. in about five years
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As an option comes to be closer to expiration date, it ______.
A. increases in value
B. devalues
C. lowers its premium
D. increases its premium
The collecting bank only acts upon the instructions given in the collection order of the presenting bank.
A. Right
B. Wrong
C. Doesn't say
According to the text, drilling in ANWR should be started______
A. in the wake of a power crisis.
B. despite its harmful effects.
C. in the interests of the public
D. in the light of solid evidence.
教育育人周期长的主要制约因素是（）
A. 社会发展
B. 儿童身心发展的年龄阶段特点
C. 自然条件
D. 教育年限长
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