搜题请搜索小程序“爱下问搜题”
问题 单项选择题

下列各种说法中正确的为（）

A.世界各金融中心的国际银行采用美元标价法

B.银行间买卖汇率之差一般在1％~5％

C.买卖汇率之和除以2即得中间汇率，它可适用于一般顾客

D.在间接标价法下，前一个数字为买价

答案

参考答案：A

单项选择题

Which of the following, if true, provides the most logical completion of the passage below
Cars fueled by methanol have a much lower level of emissions of pollutants such as carbon monoxide and environmentally harmful hydrocarbons than gasoline-fueled cars do. Methanol fuel does produce somewhat higher formaldehyde emissions than gasoline does. Nevertheless, a methanol-powered car actually produces less atmospheric formaldehyde pollution than a comparable gasoline-powered car, because （）.

A．compared to carbon monoxide and some hydrocarbons produced by gasoline-powered cars, formaldehyde pollution is not a serious threat to the environment

B．the technical difficulties involved in mass producing methanol-powered cars will prevent them from seriously competing with gasoline-powered cars for several years

C．gasoline-powered cars are required by United States law to be equipped with catalytic converters that reduce emissions of many pollutants

D．measuring a car’s emissions is generally an accurate method of assessing that car’s contribution to atmospheric pollution

E．most formaldehyde pollution generated by gasoline-powered cars results from the photochemical conversion of hydrocarbon emissions into formaldehyde in the atmosphere
查看答案
名词解释

无差别的寡头垄断
查看答案