搜题请搜索小程序“爱下问搜题”
问题

识读下图，请回答：

（1）这幅图中的机械名称是什么？

___________________________________________________________________________________________

（2）是谁在什么时候发明的？

___________________________________________________________________________________________

（3）它的用途是什么？

___________________________________________________________________________________________

（4）使用它的好处是什么？

___________________________________________________________________________________________

答案

（1）水排。

（2）南阳太守杜诗，东汉。

（3）用来鼓风冶铁，提高冶铁质量。

（4）提高炉温，提高了冶铁质量。

填空题

从下面方框中选择适当的单词并用其正确形式填入短文空格内，使短文意思正确，通顺，每词限用一次。

Parents often think their babies are very special. They want others to _小题1:_their children. For this reason, they sometimes give their children unusual _小题2:. They may choose names such as Chelma, Ukiah, or Elvira. There are some advantages to this practice. A child _小题3:_ an uncommon name who may feel special. _小题4:, sometimes we remember people with unusual names _小题5:_ than we remember people with ordinary names.

_小题6:_, unusual names can cause problems. They can be hard for teachers and friends to pronounce. They can also be hard to spell, _小题7:_ computers may automatically(自动的) change them. For example, Jule may become July. Some people may have a bad impression on an unusual name _小题8:__ they even meet the person. __小题9:__ of all, other children sometimes don’t like kids with uncommon names. The message for parents is, “ Think _小题10:_ before you give your child an unusual name.”
查看答案
单项选择题

术前自身贮血是由（）

A.到血站或卫生行政部门批准的采血点无偿献血

B.到血站或卫生行政部门批准的采血点卖血

C.输血科负责采血和贮血

D.经治医师负责采血和贮血

E.护士负责采血和贮血
查看答案