电子防丢器由子机和主机组成工作时子机发出稳定的无线电波主机接收到子机的无线电信号时不报警当主机和子机之间的距离超

（7分）某校对九年级学生进行了一次数学学业水平测试，成绩评定分为A、B、C、D四个等级（注等级A、B、C、D分别代表优秀、良好、合格、不合格），学校从九年级学生中随机抽取50名学生的数学成绩进行统计分析，并绘制成扇形统计图（如图所示）.

根据图中所给的信息回答下列问题

（1）随机抽取的九年级学生数学学业水平测试中，D等级人数的百分率和D等级学生人数分别是多少？

（2）这次随机抽样中，学生数学学业水平测试成绩的中位数落在哪个等级？

（3）若该校九年级学生有800名，请你估计这次数学学业水平测试中，成绩达合格以上(含合格)的人数大约有多少人？

每个人都知道，学习对一个人的成长是至关重要的。

Task 3

Directions: The following is an announcement. After reading it, you are required to complete the outline below it (No.46 to No.50). You should write your answers briefly (in no more than three words) on the Answer Sheet correspondingly.

We welcome you aboard the Eastern Flight and will do our best to make your trip comfortable and enjoyable.

For your safety and convenience

To begin the trip, we would like to draw your attention to some safety-related details. These are also explained on the instruction card in the seat pocket in front of you. Seat belts must remain fastened while the “Fasten seatbelts” sign is on. It is advisable to keep them fastened at all times while seated. All flights are non-smoking. The use of mobile telephones is now allowed when the airplane is on the ground. During the flight the use of CD and DVD players is not allowed.

For your entertainment

To help you enjoy your trip, we provide a range of newspapers. On our MD-11 and Boeing aircraft, we provide music and video programs. On Airbus A 321/320/319, short videos are shown.

Meals and drinks

During most flights we serve you a tasty meal and drinks. Beer, wine and other drinks are served free of charge. Coffee, tea and juice are served free of charge on all domestic (国内的) flights. On domestic flights leaving before nine and on all flights to Northern China, a snack is served.

Eastern Flight Service

Safety and convenience

1) Seat belts: remain - 46 - while the “Fasten seatbelts” sign is on

2) Smoking: not allowed on board

3) Mobile phones: used only when the airplane is - 47 -

4) CD and DVD: not allowed to play - 48 -

Entertainment provided

1) newspapers

2) music and - 49 - on MD-11 and Boeing aircraft

Meals and drinks on board

1) meals served on most flights

2) coffee, tea and juice served free of charge

3) a snack served on all flights to - 50 -

46 ___

Task 3

Directions: The following is a is part of an instruction. After reading it, you are required to complete the outline below it (No.46 to No.50). You should write your answers briefly (in no more than three words) on the Answer Sheet correspondingly.

NUROFEN RECOVERY(纽洛芬去痛片)

Please carefully before you take this medicine.

Nurofen Recovery dissolves(溶解) quickly on the tongue without the need to use water. It delivers effect .

You should not take Nurofen Recovery if

—you have had an allergic(过敏的) reaction to aspirin(阿司匹林)

—you have had a worsening of asthma(哮喘) when taking aspirin or similar medicines

—you are under 12 years of age

Administration

Place a tablet on the tongue，allow it to dissolve and then swallow—now water is required。

Adults, the elderly and children of 12 years and older

Take 2 tablets，then if necessary，take 1 or 2 tablets every 4 hours. Do not exceed 6 tablets in 24 hours. Not suitable for children under 12 years.

Warnings

If you take too many tablets by mistake，contact your doctor as soon as possible.

If symptoms persist or if new symptoms occur，consult your doctor.

Possible side effects

Stomach discomfort or pain，worsening of asthma 01"shortness of breath. If you experience any of these, stop taking the tablets and see your doctor.

NUROFEN RECOVERY

Functiondelivering -46___ from headaches

Featuredissolving quickly on -47__

People not intended for1) patients with an allergic reaction to aspirin

2) patients having asthma when taking aspirin

3) children under the age of -48__

Dosage1) Starting Dose2 tablets

2) If necessarytake l or 2 tablets -49___

3) Maximum daily intake6 tablets

Possible side effects:1) stomach discomfort

2) worsening of asthma

3) -50__

46.___

What will happen to the person who doesn’t take medicines properly？

The medicines will do the person__________.

[生物—现代生物科技专题](10分)

红细胞生成素(EPO)是体内促进红细胞生成的一种糖蛋白，可用于治疗肾衰性贫血等疾病由于天然EP0来源极为有限，目前临床使用的红细胞生成素主要来自于基因工程技术生产的重组人红细胞生成素(rhEPO）期间要生产流程如右图

（1）图中①所指的是________技术

某公司有A、B、C3项业务，分别提供不同的产品和服务为寻求企业资源的最佳组合，该公司采用波士顿矩阵对上述3项业务进行了分析，结果如图5.1所示。

为了进一步预测B业务的产品市场，该公司的咨询人员讨论了各种预测方法。其中甲咨询工程师认为移动平均是一种因果分析方法，可用于长期预测；一元回归分析是一种时问序列方法，适合近期或短期预测。

咨询人员最终采用回归分析法进行预测，预测结果2015年B业务的产品市场需求为3000万台。检验系数t（α/2，n-2）＝2.04，S0＝140（其中α＝0.025，n＝30）。

问题

1、根据波士顿矩阵分析结果，判断A、B、C各属于哪一类业务，分别说明其特点及应采用的策略。

2、甲咨询工程师对移动平均法和回归分析法的看法是否正确？说明理由。

3、根据市场需求预测结果，分析2015年B业务的产品需求量的区间及其可能的概率。

知识点本题考点涉及教材《项目决策分析与评价》中市场分析与战略分析的有关内容。

在窗体上画一个名为Command1的命令按钮，编写如下程序

程序运行后，单击命令按钮，输出的结果是_____。