表达式Int(5*Rnd()+1)*Int(5*Rnd()-1)值的范围是_____

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

If you garden for pleasure, you may not be aware of how beneficial this hobby is for your health. While you are preparing your garden to grow fresh plants, you are actually doing an amount of exercise as well. Basic yard care tasks such as cleaning the grass or moving fallen leaves away are also good ways to get physical exercise.  小题1:. Just think of the mental relaxation you experience when working in the garden.

Various health experts and university studies show that gardening and yard work are more than just enjoyable hobbies.  小题2: . This is truly a great thing as you can use your whole body while you are working. Gardening also involves a number of different kinds of exercise, including stretching and weight lighting.

Activities in the yard and garden are also a form of exercise that is appropriate for a variety of people and age groups. Depending on the activity, gardening and yard work are not quite as hard on your body as jogging or running.  小题3: Like other forms of exercise, gardening can help lower blood pressure and cholesterol (胆固醇) levels and keep away heart disease. Moreover, it helps burn a lot of calories.

 小题4:. But you can increase the amount of time you spend gardening to improve your health even more. If you are not an active gardener, think about starting a small garden. This way, you can combine the joys of growing your own food with light exercise.

When gardening, like other forms of exercise, you need to follow a few basic tips to maximize your experience. First, you should warm up a bit. Do some basic stretches so that your muscles are ready.  小题5: . This is especially important if you are not already an active gardener.

A．They are also unique forms of exercise that allow you to do something creative and fun.

B．Then if you plan to lift heavy objects, always lift them with your knees, not your back.

C．Additionally, gardening and yard care are beneficial for your mental health, too.

D．In the winter, you may wonder what kinds of activities you can do in the garden.E.There are a lot of activities that you can do in your yard and garden.

F.This means that even if you are older, you can still enjoy the exercise.

G.If you already garden, good for you!

古往今来，神州大地上无数中华儿女用自己的实际行动诠释了艰苦奋斗的优良美德和伟大精神。试列举：

（1）反映艰苦奋斗精神的格言警句。

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（2）体现艰苦奋斗精神的历史典故。

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（3）反映艰苦奋斗的人物或精神。

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男，45岁，受凉后胸痛1个月，伴烧心、咳嗽，体检：心肺听诊无异常，腹软，无压痛和反跳痛。

患者胃镜确诊为反流性食管炎，其咳嗽的最可能原因是（）

A.合并咽炎

B.合并肺炎

C.合并胸膜炎

D.食管炎刺激纵隔

E.反流物刺激气管

主要的反风方法有（）。

A.设专用反风道反风

B.轴流式风机反转反风

C.利用备用风机的风道反风（无反风道反风）

D.调整动叶安装角进行反风

某企业计划进行某项投资活动，有甲、乙两个备选的互斥投资方案资料如下：（1）甲方案原始投资150万，其中固定资产投资100万，流动资金投资50万，全部资金于建设起点一次投入，建设期为0，经营期为5年，到期净残值收入5万，预计投产后年营业收入90万，年总成本60万。（2）乙方案原始投资额200万，其中固定资产投资120万，流动资金投资80万。建设期2年，经营期5年，建设期资本化利息10万，固定资产投资于建设期起点投入，流动资金投资于建设期结束时投入，固定资产净残值收入10万，项目投产后，年营业收入170万，年经营成本80万，经营期每年归还利息5万。固定资产按直线法折旧，全部流动资金于终结点收回。企业所得税税率为30%。

计算甲、乙两方案的年等额净回收额，并比较两方案的优劣；