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计算题：在某洗苯工艺中，洗苯塔出口煤气压力ρ=107.19kpa，煤气温度为30℃，洗油的相对分子量M=160，30℃时粗苯的饱和蒸气压为13.466kpa，要使塔后煤气含苯不超过2g/m3，贫油中最大含苯量为多少？

答案

参考答案：

2.24×2×107.19÷160÷13.466=0.22%

单项选择题

下面排序算法中，平均排序速度最快的是( )

A．冒泡排序法
B．选择排序法
C．交换排序法
D．堆排序法
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填空题
阅读下面对话，从方框内7个选项中选择5个恰当的句子完成此对话。
A. See you.
B. Yes, of course.
C. How about listening to the music video together after school?
D. That’s a good idea!
E. Let’s make it 6:00 pm under the biggest cherry blossom tree(樱花树).
F. I agree.
G. What’s its name?
A: Hi, Jim! Have you seen the film Frozen!（《冰雪奇缘》）
B: _______小题1:__________ It’s such a wonderful movie.
A: _______小题2:__________ And the theme song is great, too.
B: Sure, but I forget its name. ________小题3:____________
A: Let it go.
B: Oh, yes. The lyrics are fantastic and I love the song that I can sing to.
A: Me, too.
B: ____________小题4:______
A: Good idea! When should we meet?
B: ________小题5:____________.
A:OK, I’ll be there on time. Be there or be square.
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