直流锅炉是没有（），由（）产生的压力使给水经预热、蒸发到过热_爱下问搜题

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问题填空题

直流锅炉是没有（），由（）产生的压力使给水经预热、蒸发到过热，一次流经各级受热面而产生额定参数和容量蒸汽的锅炉。

答案

参考答案：汽包；给水泵

完形填空

完形填空。

     I am a Chinese girl. My   1 is Wang Fangfang. I   2 13 years old.   3 given name is Fangfang
and my  4 name is Wang. I'm  5 Class One, Grade Seven. I have  6   good friend. Her   7   is
Linda. Miss Brown is my English teacher.   8 is very nice. We all like her very much. What's   9
telephone number? Oh,   10 555-4349.

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单项选择题

关于窗体视图的说法，正确的是( )。

A．窗体视图和查询视图一样，均有三种视图

B．“窗体”视图用于创建窗体或修改窗体的窗口

C．“设计”视图用于添加或修改表中的数据

D．“数据表”视图主要用于编辑、添加、修改、查询或删除数据