对于三重管取土器，下列（）选项中的说法是正确的。（） A.单动、双动三重管取土器的内

Carrots(胡萝卜) are grown on farms and in small family gardens all over the world. They are easy to plant and easy to harvest(收获). They have a good taste.

When people think about carrots, they usually think they are a kind of long, thin, orange-colored vegetable. In fact, carrots are in many different sizes and shapes. And not all carrots are orange.

Carrots should be grown in a field that does not have water for a long time. The earth also should not be too hard. To prepare your carrot garden, dig up the earth and turn it over(翻土). 

Weather, soil condition(土壤状况), and time affect(影响) the taste of carrots. Warm days and cool nights are the best time to grow great delicious carrots.

The best way to decide if a carrot is ready to be harvested is by its color. Usually, the brighter the color is, the better the taste is.

Most people do not know that carrots can be grown during the winter months. If the winter is not cold enough to freeze the ground, you can grow carrots the same way as you do during the summer months.

Carrots are prepared and eaten in many different ways. They are cut into thin pieces and cooked with other vegetables or meat. Or, they are washed, and eaten just as they come out of the ground.

小题1:Carrots are easy to plant but hard to harvest.

小题2:Carrots should be grown in a field without water for a long time.

小题3:The best way to decide if a carrot is ready to be harvested is by its size.

小题4:Everyone knows that carrots can be grown during the winter months.

小题5:We can prepare and eat carrots in many different ways.

若不等式（a+4）x＜5的解集是x＞-1，则a的值为______．

唐代韩愈认为：读一部书，要善于把握各部分的内在逻辑，从而提出纲要，构出精义。这样，一本书到最后可能变成简单的几张图表，书也就读“薄”了。这表明读书要(　　)

A．掌握系统优化的方法

B．坚持理论联系实际

C．做到解放思想

D．坚持实事求是

甲公司依法取得15亩蔬菜生产基地和城市规划区内20亩国有土地的土地使用权，用于开发商品房和经济适用住房，并委托某房地产估价机构对被拆迁房屋的市场价格进行了评估。开发建设过程中，甲公司依法取得商品房预售许可证后，委托乙公司代理预(销)售商品房。委托协议签订后，乙公司在媒体发布商品房预售广告，并协助甲公司为部分购房者办理抵押贷款手续。该小区全部竣工后，购房者陈某对所购商品房面积提出疑问，乙公司的销售人员进行了解释。甲公司按规定与购房者各自缴纳税费后，为购房者办理了房屋权属登记手续。

下列关于经济适用住房表述中，正确的为( )。

A．经济适用住房实质上就是廉租住房

B．低收入家庭可购买经济适用住房

C．经济适用住房土地可以划拨取得

D．经济适用住房供应实行申请、审批和公示制度

课题与论文标题（）

A.基本一致

B.完全相同

C.既有区别又有联系

D.不相联