问题
单项选择题
如果分析投资大小对方案资金回收能力的影响,选用( )。
A.投资回收期分析指标
B.财务净现值分析指标
C.财务内部收益率指标
D.净资产收益率指标
答案
参考答案:C
如果分析投资大小对方案资金回收能力的影响,选用( )。
A.投资回收期分析指标
B.财务净现值分析指标
C.财务内部收益率指标
D.净资产收益率指标
参考答案:C
800℃时,在2L密闭容器内,发生反应:2NO(g)+O2(g)⇌2NO2(g),已知在此体系中,n(NO)随时间的变化如表:
时间(s) | 0 | 1 | 2 | 3 | 4 | 5 |
n(NO)(mol) | 0.020 | 0.01 | 0.008 | 0.007 | 0.007 | 0.007 |
(2)该反应平衡常数K的表达式为______
(3)如图中表示NO2的变化的曲线是______用O2表示从0~2s内该反应的平均速率v=______
(4)为使该反应的反应速率增大,且平衡向正反应方向移动的是______
a.及时分离除NO2气体 b.适当升高温度
c.增大O2的浓度 d.选择高效催化剂.
Now a new study by professor Uri takes another look at the so-called name-letter effect and __3__ other explanations for the phenomenon. He analyzed records of political donations in the U.S. during the 2004 campaign — which included donors’ names and employers — and found that the name of a person’s workplace more closely related to the first three letters of a person’s name than with just the first letter. But he suggests that the reason for the association isn’t implied self-esteem, but perhaps something __4__ the opposite. Duyck, one of the researchers whose previous work __5__ the name-letter effect, isn’t so quick to abandon the implied self-esteem theory. He pointed out that the sample group Uri studied may have biased the results: Uri analyzed the name-letter effect in a sample of people who donated money to political __6__. Still, Duyck notes that Uri’s theories are credible, and that even while some people may __7__ the same name of companies, employees may be tending to those companies because they start with the same letter as their names. In the end, whatever the explanation for the name-letter effect, no one really disputes that self-esteem is __8__ on some level. But the true importance of the effect is up for debate. “I can’t imagine people don’t like their own letter more than other letters,” says Uri, “but the differences it makes in really __9__ decisions are probably slim.” |