问题
单项选择题
吸收操作过程中,在塔的负荷范围内,当混合气处理量增大时,为保持回收率不变,可采取的措施有()
A.降低操作温度
B.减少吸收剂用量
C.降低填料层高度
D.降低操作压力
答案
参考答案:A
吸收操作过程中,在塔的负荷范围内,当混合气处理量增大时,为保持回收率不变,可采取的措施有()
A.降低操作温度
B.减少吸收剂用量
C.降低填料层高度
D.降低操作压力
参考答案:A
选择正确的词填空,可重复使用。
—Yes, she does. 2.—_____ you spell the word? —Sorry, I can't. 3._____his grandparents like vegetables? 4.—Where_____ I? —You_____ in a new place. 5.—What_____your uncle love7 —He loves sports. 6. I _____a student. My name_____Li Hong. 7. She_____my friend. Her name_____Wang Mei. 8. —Where_____ your balls? —They _____under the bed 9.—_____ those apples? —Yes, they _____. 10. On Sunday, I _____ watch TV. I must (必须) do my homework (作业). |