问题 单项选择题

一环掘进结束后,从管片注浆孔注入的方式叫做()注浆。

A.同步

B.即时

C.半同步

D.后方

答案

参考答案:B

材料分析题

据统计,到2000年底,在全国除市辖区以外的2000多个县级单位中,未达到温饱线的占22.8%,居

温饱线和小康线之间的占63.2%,居小康线和比较富裕线之间的占13.7%,达到比较富裕线的只占

0.3%。

请问:以上数据主要说明什么问题? 

                                                                                                                                                              

                                                                                                                                                              

                                                                                                                                                              

                                                                                                                                                              

判断题