问题
单项选择题
对渣油气化反应结果,随渣油预热温度的提高,出气化炉原料气中CO2浓度()。
A、升高
B、降低
C、先增后降
D、先降后增
答案
参考答案:B
对渣油气化反应结果,随渣油预热温度的提高,出气化炉原料气中CO2浓度()。
A、升高
B、降低
C、先增后降
D、先降后增
参考答案:B
补全对话:根据对话内容,从框格中选出能填入空白处的最佳选项,并将其序号填入空白处。 | |
Mike: May I use your car, Jane? Jane: Yes, of course, 1_____. Mike: Just one or two hours. Jane: OK. 2_____ By the way, 3_____ Mike: I'm going to the train station to meet a friend of mine. Jane: Can you do something for me? Mike: 4_____ Jane. Will you buy some apples for me on your way? Mike: 5_____
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