某常规投资方案,FNPV(i1=14%)=160,FNPV(i2=16%)=-90,

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问题:

某常规投资方案,FNPV(i1=14%)=160,FNPV(i2=16%)=-90,则FIRR的取值范围为()。

A.<14%

B.14%~15%

C.15%~16%

D.>16%

考点:一级建造师建设工程经济一级建造师建设工程经济真题2007年
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下列做法中,体现珍爱生命的是(   )

A.因摔跤而不愿学骑自行车

B.不参加旅游,因为有危险

C.遇到有人落水,因自己不会游泳,就躲得远远的

D.外出游玩,遇到意外伤害,能想办法自救

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漫画《玩命》留给我们的警示是

①感性认识不如理性认识深刻、可靠  ②要正确发挥主观能动性  ③事物发展具有曲折性 ④要坚持适度的原则 

A.①②

B.③④

C.①③

D.②④

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阅读下面短文,根据所读内容在表格中的空白处填入恰当的单词。注意:每个空格只填一个单词,并请将答案写在答题纸上。
In a memory – based competition between you and a chimp (猩猩); who do you think would win? If you put yourself on top, you might want to guess again.
In a test that challenged participants to remember numbers, a young chimp performed better than Japanese college students.
Here's how the test worked. At Kyoto University in Japan, human students and chimpanzee participants sat in front of a computer. Five numbers, ranging from 1 to 9, were combined with one another and then, they appeared at random places on the screen.
The numbers stayed on the screen for less than a second. In the first test, for example, participants saw the numbers for 650 milliseconds (about two- thirds of a second).
Then, each number disappeared and they saw a white square instead. Participants had to touch the squares in numerical order, based on the numbers that had been there a moment before.
In this test, the students touched the boxes in the correct order about 80 percent of the time. A young chimp named Ayumu performed equally well.
During a harder test, participants were only able to see the numbers for 210 milliseconds.
This time, students only succeeded in putting the boxes in the correct order about 40 percent of the time. But Ayumu still could select the boxes in the right order nearly 80 percent of the time.    
Some people have what's called a "photographic memory", which allows them to remember a surprising number of details after just a quick look at something. Ayumu's memory might work in a similar way, says lead researcher Tetsuro Matsuzawa.
The chimp's young age might have something to do with his impressive performance, too. In previous tests, the Japanese researchers found that young chimps performed better than their mothers.
The scientists are interested to see whether Ayumu loses his strong memory as he arrows older. They already know that young children sometimes have sharp memories when offered something photographical, but they lose this ability over time.
Topic
A memory-based competition between human beings and chimps
(小题1:) _______
To judge whose memory is better
The (小题2:)      
of the first test
◆A chimp and some Japanese students participated in the (小题3:) _____ and sat before a computer.
◆Different combinations of five numbers appeared on the screen.
◆Each of the number was (小题4:)        by a white square.
The results of the second test
◆Students (小题5:)        to put the boxes in the right order about 40% of the time.
◆Ayumu got the right order (小题6:)       the time of the students
Conclusion
◆Some people have “photographic memory”, (小题7:)       some people to remember numbers after they 小题8:)         at something quickly.
◆The chimps have the similar (小题9:)       to human beings’.
◆Young children, just like chimps, have strong memory but they’ll lose it when they (小题10:)       .
 
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下列有关说法正确的是                                                          (   )

A.纤维素、蛋白质、油脂都是高分子化合物

B.糖类、蛋白质、油脂都是由C、H、O三种元素组成的

C.油脂有油和脂肪之分,但都属于酯

D.只用淀粉溶液就可鉴别市售食盐是否为加碘盐

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土地退化

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