吸收塔贫液中断的工艺现象是()。
A、溶剂储罐液面上升
B、吸收塔液面下降
C、吸收塔压力上升
D、再生塔进料温度上升
参考答案:A, B
. It is difficult for us to _________ a conversation with so much noise around us.
A.communicate with
B.carry on
C.set up
D.bring up
下列何种情况下土壤中重金属离子容易被作物吸收()。
A.pH=2.5
B.pH=7.0
C.pH=7.5
D.pH=8.5
E.pH=9.0