Diesel’s work turned out to be so successful by the first decade of the twentieth cen
It ______ that this method didn ’t work very well.
A) turned around
B) turned out
C)turned on
D) turned up
The fear that automation would make people out of work turned out to be______.
A.impossible
B.reasonable
C.practical
D.unnecessary
A. turned in
B. turned up
C. turned to
D. turned out
Which lubricating oil additive is used in diesel engines to reduce the tendency(倾向)for sludge and varnish to form on the engine parts?
A.Flash point improvers
B.Pour point improvers
C.Inhibitors
D.Foam suppressors(抑制物)
A.turn
B.turned
C.folder
D.turning
B.No, go right ahead
C.No, thank you
D.Yes, that’s all right
In Papusek's experiment babies make learned movements of the head in order to ______. ()
A.have the lights turned on
B.be rewarded with milk
C.please their parents
D.be praised
A.have the lights turned on
B.be rewarded with milk
C.please their parents
D.be praised