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问题 单项选择题

中共（）明确提出要以改革创新精神全面推进党的建设新的伟大工程，还要全面提高党的建设科学化的水平。

A、十八大

B、十七大

C、十六大

D、十五大

答案

参考答案：A

连词成句

连词组句

1. are, our, the behind, door, footballs

                                                                    

2. two, table, cats, are, under, the

                                                                   

3. wall, China, of, map, there, the, is, a on

                                                                   

4. are, flowers, on, some, window, the

                                                                   

5. you, can, the, find, not, broom

                                                                   

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单项选择题

下列气体会严重危害焊工身体健康的是（）。

A、CO

B、HF

C、N

D、Ar
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