题目内容

考任制源于西方的文官制度,后来为亚洲各国所效仿。()

A. 正确
B. 错误

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对n个元素进行堆排序时,最坏情况下的时间复杂度为(53)。

A. O(log2n)
B. O(n)
C. O(nlog2n)
D. O(n2)

Currently, 22 states have some kind of certification program or at least requirements for third party certification. Look for the words "certified organically grown" or similar wording. In most cases, that means that no synthetic pesticides have been used in three years and that no synthetic fertilizers have been used in two or three years. Even if your State does not have its own program, you may have seen organically grown produce in the marketplace. If you want to know exactly what that means, ask the store' s manager or the produce buyer about how the store' s "organic" produce was grown.
Legislation to establish a natural standard for organically grown produce is making its way through Congress. The US. Department of Agriculture would be responsible for the certification program. The legislation also would establish standards for processed foods claiming organic ingredients. But in the meantime, if you want to be certain that the produce you eat is pesticide free, you have two options. You can buy your fruits and vegetables from someone you know or you can grow your own.
The passage implies that______.

A. there is really no organically grown produce yet
B. some foods are falsely labeled
C. some states are slow in making laws concerned
D. each state should stop certifying certain foods

听力原文: The native Americans, the people we call the "Indians" had been in America for many thousands of years before Columbus arrived in 1492. The Indians were kind to the early settlers. They taught them about the local crops like sweet potatoes, corn and~ peanuts. But soon the settlers wanted bigger farms and more land for themselves and their families. So the Europeans started to take the land from the Indians. Naturally, when the whites started taking all the Indians' land, the Indians started fighting back. But the whites were stronger and cleverer, slowly they pushed the Indians into those parts of the continent that he didn't want--the parts where it was too cold or too dry or too mountainous to live. By 1875, the Indians were living in a special place called "reservation". But even here the whites took land from them --perhaps he wanted the wood, or perhaps the land had important minerals in it, or he even wanted to make national parks there. So even on their reservations the Indians were not safe from the whites. There are many Hollywood films about the fight between the Indians and the whites. Usually in these films the Indians are bad and the whites are good and brave. But was it really like that?
Which of the following word describes the relationship between the Indians and the early settlers?

A. Friendly.
B. Estranged.
C. Hostile.
D. Indifferent.

在进行期货交易时,交易双方无须对标的物的质量等级进行协商,但如果发生实物交割,则交易双方需要对标的物的质量等级进行协商。()

A. 正确
B. 错误

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