【单选题】氢氧化钠溶液的标签浓度为 0.2000 mol/L, 该溶液从空气中吸收了少量的 CO 2 , 现以酚酞为指示剂,用标准盐酸溶液标定,标定结果比标签浓度
【单选题】氢氧化钠溶液的标签浓度为0.3000 mol/L,该溶液从空气中吸收了少量的CO2,现以酚酞为指示剂,用标准盐酸溶液标定,标定结果比标签浓度:
【单选题】We are sure that he will getover his illness.
【单选题】氢氧化钠溶液的标签浓度为0.300mol·dm -3 ,该溶液从空气中吸收了少量的CO 2 ,现以酚酞为指示剂,用标准盐酸溶液标定,标定结果比标签浓度( )。
【单选题】What is most difficult to do when we turn human values into a programmable code?
A.
Determine what is moral and ethical。
B.
Design some large-scale experiments。
C.
Set rules for man-machine interaction。
D.
Develop a more sophisticated program。
【单选题】In the next part of the passage, the author might continue to talk about
A.
how to determine what intelligence is
B.
how education should be changed
C.
how to judge whether a person is intelligent
D.
how an unintelligent person should be taught