泼水节是以下哪个少数民族的节日（ ） A．蒙古族 B．苗族 C．朝鲜族 D．傣族

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。

Handwriting can make or break the first impression . If your handwriting is difficult for others to read, you will sometimes feel embarrassed._51___. It needs lot of practice to improve your handwriting.

____52___. Try each of them out on a piece of paper by signing your name .Find out which type of pen you can write best with. You may be amazed at the change in your handwriting just by changing to another pen.

___53__. Do not just do what feels comfortable because that is just your old bad habit coming back into play. Try to hold the pen lightly and don’t press too hard.

Use your chosen pen to write Os on some pieces of lined paper .Write until you have filled up all the lines. Be careful with each O that you write.__54____.

Practice writing Os as much as possible . Remember , practice makes perfect .You may practice for weeks or months if you need to.__55___.

As your handwriting shows signs of improvement ,  go ahead and keep on practicing by writing more words.

A．Gather different types of pens

B．Practice holding your pen in different ways.

C．However ,a bad writing habit is hard to break.

D． Choose a type of pen with which you write best.E. It won’t help if you write a lot of careless Os on the paper.

F. Two to three months’ practice is enough to get good handwriting.

G. After you are confident in your Os, do the same thing with your name.

两个完全一样的梯形可以拼成一个______，此平行四边形的底就是梯形的______，此平行四边形的高就是梯形的______，梯形的面积是平行四边形面积的______．所以，梯形的面积=______，字母公式是______．

用具体数值显示机器有关参数（）

A.警戒显示器

B.查对显示器

C.追踪显示器

D.调节显示器

E.读数显示器

土地使用权出让招标公告的内容一般不包括（）。

A.投标人的名称和地址 

B.投标人的资格要求 

C.投标保证金 

D.确定中标人的标准和方法

高层建筑的耐火等级不应低于二级。( )