更多"With this（）mind，we are writing to i"的相关试题:
[单项选择]With this（）mind, we are writing to inquire if we could now begin discussing the question of sole agency.
A. in
B. on
C. at
D. inside
[单项选择]We are pleased to know that you have planned to come to the Autumn Guangzhou Fair.We wish to discuss with you some other important things if you could come（）your earliest convenience.
A. by
B. on
C. in
D. at
[判断题]CO和CO2的生成热均指石墨与氧生成的CO和CO2的热效应。
[简答题]测定微量CO、CO2时为什么在CO峰后边有时会出现负分？
[简答题]测定微量CO、CO2时为什么在CO峰后边有时会出现负峰？
[单项选择]在充满的CO2气瓶中，液态CO2和气态CO2所占比例为（）
A. 5：5
B. 2：8
C. 8：2
D. 9：1
[多项选择]由CO2、H2和CO组成的混合气在同温同压下与氮气的密度相同。则该混合气体中CO2H和CO的体积比为（）
A. 29：8：13
B. 22：1：14
C. 13：8：29
D. 26：16：57
[单项选择]CO助燃剂的作用是促进CO氧化成CO2，减少排出烟气中的（）含量。
A. CO
B. CO2
C. H2
D. O2
[单项选择]新氢中CO＋CO2含量应小于（）。
A. 5ppm
B. 10ppm
C. 30ppm
D. 100ppm
[单项选择]甲烷化后气体CO和CO2含量要求（）。
A. 小于0.1%
B. 小于10ppm
C. 小于1.0%
D. 小于7.0%
[单项选择]We all gather facts and （） conclusions, but we have very different styles of thinking.
A. pull
B. draw
C. take
D. receive
[单项选择]We have received your letter of September 12，（）we are glad to know that you are interested in our electric heaters.
A. which
B. at which
C. from which
D. in which
