单项选择题

进料温度越高，完成同样的分离任务需要的理论板数越少。（）
A、正确
B、错误

你可能感兴趣的试题

某二轴晶⊥Bxa切面的折射率小于⊥Bxo切面的折射率，则该晶体为二轴正晶。（）

答案：错误

单项选择题

Listen to a short statement. Read the four choices marked A, B, C and D. Then decide which one is closest in meaning to the statement you have heard.115
A、A. I can never get new clothes because I have no money.
B、B. I can never get the proper size of clothes for me.
C、C. You can’t give me clothes to defeat me.
D、D. My mother never buys clothes for me.