下列有关物权特征的表述中,正确的有()。
A.物权是支配权
B.物权是相对权
C.物权是财产权
D.物权是排他权
E.物权是绝对权
参考答案:A, B, C, E
--- You didn’t have a good time at the party?
---- No, I ______ a lot from the noise made by the band.
A.worried
B.suffered
C.heard
D.enjoyed
下列说法中错误的有()
A.离心泵的压头普遍随流量的增大而增大
B.离心泵的轴功率随流量增大而上升
C.离心泵的效率随流量的增大而下降