Fifteen engines are scheduled for delivery this week, the remainder ____ at a later date.
A、sends
B、to send
C、to be sent
D、sending
A、sends
B、to send
C、to be sent
D、sending
Solid-fuel engines are simpler than liquid-fuel engines, ______have important uses.
A.both of them
B.both
C.both of which
D.both all
Fire engines and ambulances have ______ over othertraffic.
A) priority
B) urgency
C) superiority
D) emergency
The search engines work by means of _________.
A. arranging links to the Internet
B. submitting specific search term
C. updating a knowledge database
D. searching engine spiders
A.the lubricating oil consumption
B.the turbine blade temperature
C.the flow rate of fuel
D.scavenge air pressure
Children under fifteen are not permitted to see such kind of movies () bad for their mental development.
A. that is
B. which is
C. as is
D. what are
A.basis
B.basic
C.base
D.based