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Passage OneQuestions 26 to 28 are based on the passage you have just heard.

A. Take their bags to the grocery store.
Buy things that are over-packaged.
C. Not buy cloth towels.
D. Not throw away their cloth towel.

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Questions 11 to 18 are based on the conversation you have just heard.

A. The man thinks the children should have a play room.
B. The woman hasn’t made up her mind.
C. The man objects to the expense.
D. The woman wants to compromise.

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(每道小题有一项或一项以上的正确答案。) 已知某厂2000-2009年工业产值指数呈现为一个周期波动，如表4-2所示。表4-2年份2000200120022003200420052006200720082009工业产值指标(%)95.696.8102.4118.3105.2104.1105.2102.1100.494.2 根据上述资料计算循环波动测定指标：收缩长度为( )年。 A．2 B．4 C．6 D．8

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已知某手机企业2002-2009年在手机新技术研发上的投入额，如表4—3所示。表4-3年份时间序号投入额(百万)20021252003225200433920054402006545200765020087502009860 根据上述资料请回答：应用指数平滑法来建立预测模型时，关于平滑常数α的叙述，正确的是( )。 A．α值越小，对数列的修匀效果越好 B．α值越大，近期数值对预测的影响越大 C．当数列的波动较剧烈时，应取较小的α值，以便增强对数列修匀的作用 D．当预计数列可能要发生转折时，应取较大的α值，因为这样可以加重近期资料的影响，易于对转折灵敏地作出反应 E．当数列中的规律不会有大的变化时，α的数值不妨小些，因为这样消除数列波动的效果好

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(每道小题有一项或一项以上的正确答案。) 已知某厂2000-2009年工业产值指数呈现为一个周期波动，如表4-2所示。表4-2年份2000200120022003200420052006200720082009工业产值指标(%)95.696.8102.4118.3105.2104.1105.2102.1100.494.2 根据上述资料计算循环波动测定指标：在此期间内衰退转折点为( )年。 A．2000 B．2003 C．2007 D．2008

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Passage OneQuestions 26 to 28 are based on the passage you have just heard.

A. Take their bags to the grocery store. Buy things that are over-packaged. C. Not buy cloth towels. D. Not throw away their cloth towel.

Questions 11 to 18 are based on the conversation you have just heard.

A. Take their bags to the grocery store.
Buy things that are over-packaged.
C. Not buy cloth towels.
D. Not throw away their cloth towel.