连词组句。

1. have, I, a, bedroom

                                                   .

2. shoes, his, are, his, bed, below 

                                                   .

3. in, the, evening, bed, goes, to, he

    ___________________________.

4. His, lamp, his, bed, beside. Is

    ___________________________.

5. bedroom, he, likes, his

    ___________________________.

用N_A表示阿伏加德罗常数，下列叙述正确的是

A．2.8 g乙烯和丙烯的混合气体中所含碳原子数为0.2N_A

B．0.5molC₃H₈分子中所含C-H共价键数为2N_A

C．标准状况下，22.4L乙醇完全燃烧所耗的氧气分子数为3N_A

D．1mol碳正离子所含的电子数为11N_A