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【单选题】

PART 5 Read the text below and choose the correct word for each space. For each question, mark the letter next to the correct word — A, B, C or D — on your answer sheet. THE ESCALATOR An American, Charles D. Seeberger, invented moving stairs to transport people in the 1890s. He (26)______ this invention an 'escalator', (27)______ the name from the Latin word 'scala', (28) means 'ladder'. Escalators move people up and down short (29)______ Lifts de the same, but only move (30)______ small number of people. If an escalator breaks down, it can still be (31)______ as ordinary stairs. An escalator can move (32)______ 8,000 and 9,600 people an hour, and it (33)______ not need a person to operate it. Towards the end of the nineth century, cities were (34)______ more crowded and the first escalators were built at railway stations and in big department (35)______ so that people could move about more quickly. Today we see escalators everywhere.

A.
announced
B.
called
C.
translated
D.
explained
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【多选题】关于风险的衡量下列说法正确的有( )

A.
可以采用资产的预期收益率衡量风险
B.
如果两个方案进行比较,则标准差大的方案风险一定大
C.
如果两个方案进行比较,则标准离差率大的方案风险一定大
D.
预期收益率不同的方案之间的风险比较只能使用标准离差率指标

【多选题】下列关于风险衡量的说法正确的有 ( ) 。

A.
期望值相等的多个方案,标准差越小,风险越小
B.
无论期望值是否相同,多个方案比较时,选择标准差小的方案
C.
当风险报酬率大于预测风险收益率时,说明方案可行
D.
当风险报酬率小于预测风险收益率时,说明方案可行

【多选题】下列关于风险衡量的说法中,正确的有()。

A.
在期望值相同的情况下,方差越大,风险越大
B.
在期望值相同的情况下,标准差越大,风险越大
C.
在期望值相同的情况下,标准差越小,风险越大
D.
标准离差率越大,风险越大