当原料气气质气量不发生改变,提高MDEA的气液比,则()。
A、产品气H2S降低
B、吸收塔压差增大
C、再生蒸汽用量减少
D、溶液选择性提高
参考答案:C
VIII.阅读下列短文,以约30 个词概括短文内容:(不用写其他内容)(5 )
In the United States and a number of other countries, the second Sunday in May is celebrated as Mother’s Day.
The history of Mother’s Day is centuries old and goes back to the times of the ancient Greeks, who held festivities to honor Rhea, the mother of the gods. In 1872 Julia Ward Howe organized a day for mothers delicated to peace. It is a landmark in the history of Mother’s Day.
In 1907, a woman named Anna Jarvis thought mothers should be honored with expressions of love and respect and began a campaign to honor mothers in America. She talked to friends and friends of friends. She wrote to congressmen(国会议员),local leaders, teachers and newspaper publishers. Finally , President Woodrow Wilson signed a resolution in May of nineteen fourteen that officially established Mother’s Day. Slowly and gradually Mother’s Day became very popular and its gift giving activity increased.
子宫肌瘤出现剧烈腹痛常见的原因是:
A.肌瘤迅速生长B.粘膜下肌瘤刺激子宫收缩C.肌瘤压迫膀胱或直肠D.肌瘤恶变E.肌瘤红色变性