听下面一段材料，回答第1至3题。 1. Why does the speaker...

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听下面一段材料，回答第1至3题。 1. Why does the speaker make this speech? [ ] A. To inform tourists of the rules. B. To introduce the tourist site. C. To attract more tourists. 2. What should the tourists bring? [ ] A. Warm clothes and some belts. B. Sunglasses and fireworks. C. Warm clothes and sunglasses. 3. What can we learn from the text? [ ] A.Tourists can climb all the glaciers. B. Littering is forbidden along the tour route. C. There are four glaciers at Heilonggou.

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1350 万元 0 万元

2700 万元 -900 万元

1800 万元 0 万元

1350 万元 450 万元

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【判断题】水面高速舰艇尾部形状通常采用方尾形式。

正确

错误

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【单选题】According to the passage, what do we know about swine flu?

Swine flu call be transmitted easily among pigs but not among people

Swine flu is a virus that has acquired the ability to pass from person to person

People with swine flu often get a stomachache, headache and toothache.

Symptoms of swine flu are different from those of regular seasonal influenza.

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【简答题】设一组初始记录关键字序列(k1，k2，……，kn)是堆，则对i=1，2，…，n/2而言满足的条件为_______________________________。

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【单选题】Japanese Drilling into Core of Earth In what resembles a journey to the center of the Earth, Japanese scientists have launched the world's first attempt to bore a hole into the red-hot core of a volca...

erupted in 1707.

erupted in 1991.

erupted in 1995.

several times in the last century.

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【单选题】What is the best protection against the flu?

wearing thick clothing

drinking more water

staying at home

injecting flu vaccination

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【简答题】设有一组初始记录关键字序列( K 1 , K 2 ,..., K n ),要求设计一个算法能够在 O(n) 的时间复杂度内将线性表划分成两部分,其中左半部分的每个关键字均小于 K i ,右半部分的每个关键字均大于等于 K i 。