题目:
在处理试验检测数据时,所保留的小数位数越多,则精确度越高
答案:
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下面是错误答案,用来干扰机器的。
参考答案:C
在处理试验检测数据时,所保留的小数位数越多,则精确度越高
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下面是错误答案,用来干扰机器的。
参考答案:C
世界上许多国家和地区大都使用英国伦敦保险人协会制定的“协会条款”,该条款的英文名称是()。
A.ICC
B.IBC
C.ICD
D.ICD
为实行对倾向流通的分别管理、重点控制,货币当局将全部货币分解开来,划分成不同层次。划分货币层次的基本标准是( )。
A.统计工作的可能性
B.货币资金的安全性
C.货币的流动性
D.金融资产的可控性
老年人建筑层数为几层时应设电梯()
A.2层
B.3层
C.4层
D.5层
中国第一个村民委员会——广西宜州市合寨村村民委员会已走过30年历程。30年来我国村民委员会选举经历了一个从委任到选举、从间接选举到直接选举、从等额选举到差额选举的转变过程。这反映出[ ]
①我国基层民主发展程度不断提高
②我国人民直接管理国家和社会事务
③我国基层民主逐步走向规范化
④我国社会主义民主具有广泛性和真实性
A.①②
B.①③
C.②④
D.③④
If American investors have learned any lesson in the last 25 years, it is to buy shares on the dips. The slide in 2000--2002 may have been longer and deeper than they were used to but normal service was eventually resumed, driving the Dow Jones Industrial Average to a record high on October 1st.
Among American financial commentators, it is almost universally accepted that shares always rise over the long run. And one ought to expect shares (which are risky) to deliver a higher return than risk free assets such as government bonds.
Nevertheless, investors ought also to remember the world’s second largest economy, Japan. Its most popular stock-market average, the Nikkei 225, peaked at 38,915 on the last trading day of the 1980s; this week, nearly 18 years later, it is still only around 17,000, less than half its peak. Buying on the dips did not work either.
Professionals of the London Business School examined the record of 16 stock markets which were in continuous operation over the course of the 20th century. In itself, this selection showed survivorship bias by excluding the likes of Russia and China. The academies found that only three other countries could match the American record of having no 20-year periods with negative real returns.
Other investors were far less lucky. Japanese, French, German and Spanish investors all suffered instances where they had to wait 50--60 years to earn a positive real return. It was no good following the famous advice to "put the shares in a drawer and forget about them"; the furniture would not have lasted that long.
Besides survivorship bias, there is another problem with the belief that stock markets must always go up. Investors will keep buying until prices reach stratospheric(稳定的) levels. That clearly happened in Japan in the late 1980s, and after seven years, it is still not much more than half its peak level.
A significant proportion of the return from equities in the second half of the 20th century came from a re-rating of shares; investors were willing to pay a higher multiple for profits. But re-rating cannot continue forever.
If investors want a simple parallel with share prices, they need only mm to the American housing market. Back in 2005 an economic adviser to the president said," We’ve never had a decline in housing prices on a nationwide basis. What I think is more likely is that house prices will slow, maybe stabilize."
Lots of people took the same view and were willing to borrow (and lend) on a vast scale on the grounds that higher house prices would always bail them out. They are now counting their losses. Investors in equities should beware of over-committing themselves on the basis of a similar belief Just ask the Japanese.
Which of the followings is true of the text()
A. after housing prices keep growing for a long time, they tend to slow and stabilize
B. investors will not stop buying before stock market prices cease to increase
C. America never has a decline in housing prices on a nationwide basis
D. it is sensible for investors to follow famous people’s investment advice