背景材料：某多层框架结构主体施工，层高3．6m，现浇楼面采用扣件式钢管支架，竹胶合板

医疗上常用的葡萄糖的化学式为C₆H₁₂O₆，试计算：

①葡萄糖的相对分子质量为                 ；

②葡萄糖中三种元素的质量比为                                  ；

③葡萄糖中所含碳元素的质量分数                  。

若一台1151智能型压变，正信号线有接地现象，则会（）。

A．电压降低

B.电压升高

C.电流减小

D.电流增大

句型转换。

1. She didn't go to school by bike, but she went there on foot.(同义句转换)  

    She went to school on foot ____ _____ by bike.

2. He didn't speak to him any more.(同义句转换) 

    He spoke to him _____ _____.

3. David was so careless that he didn't find the mistakes in his test paper.(改为简单句)  

    David was ____ careless _____ find the mistakes in his test paper.

4. I used to get up early in the morning.(改为一般疑问句)  

    ____ you ____ to get up early in the morning?

5. The girl with some flowers in her hand is my sister.(改为含有定语从句的复合句)  

    The girl _____ _____ some flowers in her hand is my sister.

（）类缺陷为紧急缺陷，使设备不能继续运行，必须立即处理。

A.I类

B.II类

C.III类

配有液压站的M系列立加，液压站在接线完好的情况下，液压站不随系统启动，如何解决？