全口义齿人工牙排列的原则不包含以下哪项 （） A.美观 B.兼顾功能和组织保健 C

根据括号内所给动词的适当形式填空，必要时可加助动词。

     In some foreign countries,some people 1            (do, not) like the number 13. They don't think 13 is a

lucky number.

     Michael 2            (have) the same idea Today is his twentieth birthday. He 3            (ask) some friends

to his birthday party. All of his friends 4             (arrive) at his home at seven. So he asks them 5           

(sit) around the dinner table. He begins to count the number of the people. Suddenly, he says Oh, there 6            (be) thirteen people here! Everyone is unhappy, but Mr Brown isn't, He says slowly, 7            

(do not) worry, my dear friends! We have fourteen people here because my wife Mrs Brown will 8            

(have) a baby in a few weeks. All of them become happy again.Congratulations! they 9            (say) to Mr

and Mrs Brown.Then they 10            (enjoy) the nice food and have a good time.

关于聚落的叙述，正确的是[ ]

A．聚落仅指房屋建筑的集合体      

B．聚落主要指乡村，不包括城市

C．聚落是在很大程度上反映了区域的经济发展水平、风俗文化

D．城市的规模较大，人口数量少，密度高

“弘扬法治精神，促进社会和谐”是第十二个全国法制宣传日的主题。全国法制宣传日是适应普法深入发展的要求，适应实施依法治国基本方略的要求，适应社会主义现代化事业发展需要而确立的。下列说法与材料所蕴含的哲学道理相同的是

①巧妇难为无米之炊                  ②青山遮不住，毕竟东流去

③仓禀实而知礼节，衣食足而知荣辱    ④花在树则生，离枝则死

A．①③

B．①④

C．②④

D．②③

材料管理的最终目的是( )。

A．便于材料统计

B．控制材料成本

C．提高工作效率

D．利于环境保护

桥式起重机使用较广泛，它是属于（）一类的起重机械。