下列关于助听器的最大声输出的说法中错误的是

A、助听器的最大声输出尽可能得大,而且要超过患者的UCL曲线
B、无论助听器的功率多大,使用时绝对不能超过患者的UCL
C、助听器如果压缩限制设置得不得当,大强度的声音就会导致削峰而产生失真
D、患者的实际所需要小于助听器的最大输出
查看答案
正确答案:

A

答案解析:

暂无解析

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If the old maxim that the customer is always right still has meaning, then the airlines that ply the world’s busiest air route between London and Paris have a flight on their hands.

The Eurostar train service linking the UK and French capitals via the Channel Tunnel is winning customers in increasing numbers. In late May, it carried its one millionth passenger, having run only a limited service between London, Paris and Brussels since November 1994, starting with two trains a day in each direction to Paris and Brussels. By 1997, the company believes that it will be carrying ten million passengers a year, and continue to grow from there.

From July, Eurostar steps its service to nine trains each way between London and Paris, and five between London and Brussels. Each train carries almost 800 passengers, 210 of them in first class.

The airlines estimate that they will initially lose around 15%-20% of their London-Paris traffic to the railways once Eurostar starts a full service later this year (1995), with 15 trains a day each way. A similar service will start to Brussels. The damage will be limited, however, the airlines believe, with passenger numbers returning to previous levels within two to three years.

In the short term, the damage caused by the 1 million people-levels traveling between London and Paris and Brussels on Eurostar trains means that some air services are already suffering. Some of the major carriers say that their passenger numbers are down by less than 5% and point to their rivals-Particularly Air France-as having suffered the problems. On the Brussels route, the railway company had less success, and the airlines report anything from around a 5% drop to no visible decline in traffic.

The airlines’ optimism on returning traffic levels is based on historical precedent. British Midland, for example, points to its experience on Heathrow Leeds Bradford service which saw passenger numbers fold by 15% when British Rail electrified and modernized the railway line between London and Yorkshire. Two years later, travel had risen between the two destinations to the point where the airline was carrying record numbers of passengers.

1.British airlines confide in the fact that__.

A.they are more powerful than other European airlines.

B.their total loss won’t go beyond a drop of 5% passengers.

C.their traffic levels will return in 2-3 years.

D.traveling by rail can never catch up with traveling by air.

2.The author’s attitude towards the drop of passengers may be described as__.

A.worried.B.delightedC.puzzled.D.unrivaled.

3.In the passage, British Rail (Para 6) is mentioned to__.

A.provide a comparison with Eurostar.

B.support the airlines’ optimism.

C.prove the inevitable drop of air passengers.

D.call for electrification and modernization of the railway.

4.The railway’s Brussels route is brought forth to show that__.

A.the Eurostar train service is not doing good business.

B.the airlines can well compete with the railway.

C.the Eurostar train service only caused little damage.

D.only some airlines, such as Air France, are suffering.

5.The passage is taken from the first of an essay, from which we may well predict that in the following part the author is going to__.

A.praise the airlines’ clear-mindedness.

B.warn the airlines of high-speed rail services.

C.propose a reduction of London/Paris flights.

D.advise the airlines to follow British Midland as their model.

Under no _____ will I go there again.

A、circumstances
B、situation
C、giant
D、happen

Would he have seen you if you hadn’t _____ to him?

A、intended
B、waved
C、expressed
D、debt

按事故成因划分,事故可分为______ 和 ______ 两大类。

翻译训练:

筷子(chopsticks) 是中国传统的独具特色的进食工具 (diningutensils) ,至今已有数千年的历史。筷子在古代被称为“箸”,大约从明朝开始才有了 “筷子”的称呼。筷子多为竹子制成,也有用木头、象牙(ivory)、金属或其他材料制作而成。它要么上方下圆,要么上下全圆而上粗下细。不管其形状如何,筷子必须是成对使用的,并且两只筷子的大小长短要相同。筷子是中国人日常生活的必备工具,它的发明充分反映了中国人民的智慧。

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