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[单选题]

At todays foreign exchange rate, every US Dollar is equal ______ RMB 7.6.

A.to

B.as

C.in

D.for

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更多“At todays foreign exchange rat…”相关的问题

第1题

In Zurich,a leading canton in the Swiss Confederation,it has been proposed to teach one fo
reign language—English—in primary schools.This would represent a change【C1】______Zurichs elementary school kids now study English and French.Voters will decide whether French will be【C2】______. Some educators believe that two foreign languages are too much for kids.Supporters of one foreign language believe that kids fail to reach strong【C3】______in German, the mother tongue for schoolchildren in Zurich. In fact, Zurich kids speak Swiss German, which is【C4】______an oral language.In school they have to learn standard German, which in some ways is a foreign language.【C5】______you add them all together Zurich kids are learning four languages. All of Switzerland will watch what Zurich voters decide because Zurich is an influential canton and others may【C6】______.Yet some German-speaking cantons have already decided to reject plans to reduce the number of foreign languages. Regardless of what happens, Swiss kids will be fluent in more than one language which is a definite asset in todays【C7】______economy.It is also a definite asset in learning other subjects.Studies【C8】______in American universities have found that kids who study in dual-language schools outperform. their【C9】______who are taught in English only.Apparently, kids educated in two languages develop a mental agility that monolingual kids lack.Perhaps four languages are too many in elementary school,but two is not【C10】______at all.

【C1】

A.which

B.since

C.even if

D.now that

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第2题

In accordance with Sinotime,the Charterers will not be responsible for __________.A.the ex

In accordance with Sinotime,the Charterers will not be responsible for __________.

A.the expenses of all dock,harbour and tonnage dues at the ports of delivery and re-delivery unless incurred before delivery or after re-delivery

B.expenses of agencies and commissions

C.charges including any foreign general municipality or state taxes

D.expenses for all ropes,falls,slings and blocks actually used for loading and discharging

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第3题

Where's()newspaper?A、todayB、today 'sC、todays'

A.today

B.today 's

C.todays'

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第4题

Questions下列各 are based on the following passage. The federal automobile efficiency sta
ndards announced this week are an important step on Americas path to a lower-carbon and more-secure energy future. They are expected to yield multiple benefits: reduced dependence on foreign oil, fewer greenhouse gas emissions, consumer savings at the pump and a more competitive auto industry. They may also serve as proof that well-tailored government regulation can achieve positive results and that consensus among old enemies--in this case environmentalists and the car companies--is possible even at a time of partisan (党派的) disagreement. The standards build on a 2009 agreement that established a unified set of rules governing fuel economy and carbon dioxide pollution from automobiles and light tracks. Those rules covered model years 2012-16 ; the new rules cover 2017 to 2025. Taken together, the two sets of rules would increase fuel efficiency from todays average of about 29 miles per gallon to 54.5 miles per gallon when they are fully effective in 2025. This is expected to result in a cut of 40 percent to 50 percent in fuel consumption and roughly equivalent cuts in greenhouse gas emissions. The White House says the rules would reduce oil consumption by two million barrels a day by 2025;the nation now consumes 19 million barrels a day and imports just less than haft that amount. And while fuel-efficient cars will cost more initially, lower fuel use is expected to save consumers up to $8,000 over the life of their vehicles. The battle for greater fuel economy goes back years and involved many players: California, which in2002 passed its own law regulating greenhouse gas emissions from vehicles sold there; environmenttalists,who pressured the Environmental Protection Agency to impose similar rules nationwide; the Supreme Court, which in 2007 authorized the agency to move forward; and Congress, which ordered the Department of Transportation to update fuel economy standards that had been largely untouched since 1975. President Obamas contribution was to bring about a consensus among the agencies, the states, the automakers and the interest groups on federal and state standards that reduced fuel use and gave industry the regulatory certainty it needed to move forward. It is a model of public-private cooperation. Even so, the Romney campaign has called the rules "extreme" and House Republicans have threatened to roll them back. That would be a grave harm to consumers, the auto companies, the economy and the planet. The federal automobile efficiency standards announced this week______.

A.help to eliminate partisan disagreement between the two parties

B.enable Americans to be independent from foreign oil

C.help to promote consumption of gas and automobiles

D.can result in a lower-carbon and more-secure energy future

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第5题

Though Einstein was a great scientist, many of his ideas______today and are being modified
by the work of todays scientists.

A.are to challenge

B.are challenging

C.may be challenged

D.have been challenged

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第6题

Cheating is nothing new. But today, educators and administrators are finding that instance
s of academic dishonesty on the part of students have become more frequent—and are less likely to be punished—than in the past. Cheating appears to have gained acceptance among good and poor students alike. Why is student cheating on the rise? No one really knows. Some blame the trend on a general loosening of moral values among todays youth. Others have attributed increased cheating to the fact that todays youth are far more pragmatic(实用主义的)than their more idealistic predecessors. Whereas in the late sixties and early seventies, students were filled with visions about changing the world, todays students feel great pressure to conform. and succeed. In interviews with students at high schools and colleges around the country, both young men and women said that cheating had become easy. Some suggested they did it out of spite for teachers they did not respect. Others looked at it as a game. Only if they were caught, some said, would they feel guilty. "People are competitive," said a second-year college student named Anna, from Chicago. Theres an underlying fear. If you dont do well, your life is going to be ruined. The pressure is not only from parents and friends but from oneself. To achieve. To succeed. Its almost as though we have to outdo other people to achieve our own goals. Edward Wynne, a magazine editor, blames the rise in academic dishonesty on the schools. He claims that administrators and teachers have been too hesitant to take action. Dwight Huber, chairman of the English department at Amarillo, sees the matter differently, blaming the rise in cheating on the way students are evaluated. " I would cheat if I felt I was being cheated," Mr. Huber said. He feels that as long as teachers give short-answer tests rather than essay questions and rate students by the number of facts they can memorize rather than by how well they can put information together, students will try to beat the system. "The concept of cheating is based on the false assumption that the system is legitimate and there is something wrong with the individuals who are doing it," he said. "Thats too easy an answer. Weve got to start looking at the system. "

Educators are finding that students who cheat______.

A.are more likely to be punished than before

B.have poor academic records

C.are not only those academically weak

D.tend to be dishonest in later years

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第7题

CFR Ex tackle
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第8题

∫exsin(ex)dx=()

A.-sin(ex)+C

B.cos(ex)+C

C.-cos(ex)+C

D.sin(ex)+C

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第9题

设f(u)可导,且u=ex,则[f(ex)]'=( )。

A.exf'(ex)

B.f'(u)

C.ex[f(ex)]'

D.f'(ex)

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第10题

函数f(x)=ex的不定积分还是ex本身.()

函数f(x)=ex的不定积分还是ex本身.( )

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